<Tr> <Th> 85 </Th> <Td> 18 </Td> <Td> "Candles in the Wind" </Td> <Td> Heather Conkie </Td> <Td> Dean Bennett </Td> <Td> March 25, 2012 (2012 - 03 - 25) </Td> <Td> 518 </Td> </Tr> <Tr> <Td_colspan="7"> When a mystery horse arrives at Heartland, Amy and Ty are sent down a path that will alter their lives . Ty plans on proposing to Amy and is struggling to find the right moment to propose . Amy decides to stay at Heartland, and Jack goes to Paris . Shane shows up at Heartland, and Tim and Miranda realize they have to take into consideration what he wants . Miranda kisses Tim and decides to let Shane visit him anytime he wants . Amy finds the ring . </Td> </Tr> <Table> <Tr> <Th> No . overall </Th> <Th> No. in season </Th> <Th> Title </Th> <Th> Directed by </Th> <Th> Written by </Th> <Th> Original air date </Th> <Th> Prod . code </Th> </Tr> <Tr> <Th> 86 </Th> <Td> </Td> <Td> "Running Against the Wind" </Td> <Td> Stefan Scaini </Td> <Td> Heather Conkie </Td> <Td> September 16, 2012 (2012 - 09 - 16) </Td> <Td> 601 </Td> </Tr> <Tr> <Td_colspan="7"> Amy is bursting to ask Ty about the engagement ring, and why he hasn't proposed yet, but a couple of "runaways" throw everything at Heartland into turmoil . One of the "runaways" is a horse that likes to jump fences; Amy is trying to find the owner but she grows attached and gives the horse a name: Phoenix Rising . The other "runaway" is an eleven - year - old girl whose name is Georgina, but who wants to be called Georgie . Lou and Peter's house is nothing but trouble . </Td> </Tr> <Tr> <Th> 87 </Th> <Td> </Td> <Td> "Crossed Signals" </Td> <Td> Stefan Scaini </Td> <Td> Heather Conkie </Td> <Td> September 23, 2012 (2012 - 09 - 23) </Td> <Td> 602 </Td> </Tr> <Tr> <Td_colspan="7"> Ty struggles to deal with the fact that Amy has found the engagement ring and has to decide how and whether he is going to propose to her . Kendra, Phoenix's owner, comes to Heartland to take him home . Amy discovers that Kendra, although she loves her horses, has problems taking proper care of them . Meanwhile Georgie, the 11 - year - old runaway, is proving to be quite a handful . Ty and Amy decide to wait . </Td> </Tr> <Tr> <Th> 88 </Th> <Td> </Td> <Td> "Keeping Up Appearances" </Td> <Td> Dean Bennett </Td> <Td> Ken Craw </Td> <Td> September 30, 2012 (2012 - 09 - 30) </Td> <Td> 603 </Td> </Tr> <Tr> <Td_colspan="7"> Tim hopes for a big commission when he helps a wealthy weekend cowboy look for his dream ranch, while Amy's stuck teaching the client's trophy wife how to ride . Mallory comes home . Ty is distracted by Amy's decision to wait on getting engaged . </Td> </Tr> <Tr> <Th> 89 </Th> <Td> </Td> <Td> "The Natural" </Td> <Td> Dean Bennett </Td> <Td> Leila Basen </Td> <Td> October 7, 2012 (2012 - 10 - 07) </Td> <Td> 604 </Td> </Tr> <Tr> <Td_colspan="7"> Amy tries to fulfill Mallory's dream of being a show jumper but discovers that Georgie has the natural talent . Lou leaves for New York . Miranda and Tim hook up . Ty studies for his finals . Jack and Tim buy a buffalo . </Td> </Tr> <Tr> <Th> 90 </Th> <Td> 5 </Td> <Td> "Trial Run" </Td> <Td> Grant Harvey </Td> <Td> David Preston </Td> <Td> October 28, 2012 (2012 - 10 - 28) </Td> <Td> 605 </Td> </Tr> <Tr> <Td_colspan="7"> Janice brings Cisco Kid (and her emotional baggage over Tim) to Heartland for Amy to figure out why Cisco's lost that winning feeling . Georgie and Mallory try to rescue a stray dog from a well . Tim gives Cisco to Janice . Ty gets into vet school and a scholarship . </Td> </Tr> <Tr> <Th> 91 </Th> <Td> 6 </Td> <Td> "Helping Hands" </Td> <Td> Grant Harvey </Td> <Td> Mark Haroun </Td> <Td> November 4, 2012 (2012 - 11 - 04) </Td> <Td> 606 </Td> </Tr> <Tr> <Td_colspan="7"> Amy seeks out an up - and - coming show jumper, Jeremy Hughes, to learn why he's refusing Scott and Ty's suggested treatment for his horse Buckingham . Mallory and Georgie finally get along . Lisa decides she and Jack need to take a break . </Td> </Tr> <Tr> <Th> 92 </Th> <Td> 7 </Td> <Td> "Life is a Highway" </Td> <Td> Jim Donovan </Td> <Td> Leila Basen </Td> <Td> November 11, 2012 (2012 - 11 - 11) </Td> <Td> 607 </Td> </Tr> <Tr> <Td_colspan="7"> Chase Powers returns to Heartland with his wife, Hayley, who is an aspiring liberty horse rider . She wants Amy to be her coach . Lou comes home and quits her job . </Td> </Tr> <Tr> <Th> 93 </Th> <Td> 8 </Td> <Td> "Do The Right Thing" </Td> <Td> Jim Donovan </Td> <Td> Mark Haroun </Td> <Td> December 2, 2012 (2012 - 12 - 02) </Td> <Td> 608 </Td> </Tr> <Tr> <Td_colspan="7"> When Ty needs some engine parts for his broken down truck he's forced to turn to the last person on earth he wants help from - his stepfather Wade . In the meantime Lou tries to win Dan (Lisa's ex-husband) over as a client and Georgie has to work with Mallory in order to prepare a party for Ty . Ty and Wade end up bonding . Lisa's ex-husband says that him and Lisa are back together . Ty and Amy each begin to wonder what they are waiting for to get engaged . </Td> </Tr> <Tr> <Th> 94 </Th> <Td> 9 </Td> <Td> "Great Expectations" </Td> <Td> Dean Bennett </Td> <Td> Heather Conkie </Td> <Td> December 9, 2012 (2012 - 12 - 09) </Td> <Td> 609 </Td> </Tr> <Tr> <Td_colspan="7"> Jack has applied to become Georgie's long - term foster parent, so Clint interviews them, but things don't look good . Ty and Amy have a life - changing weekend when they get engaged . Georgie runs away from Heartland to Lou and Peter's house, and it catches on fire . </Td> </Tr> <Tr> <Th> 95 </Th> <Td> 10 </Td> <Td> "The Road Ahead" </Td> <Td> Dean Bennett </Td> <Td> Heather Cookie </Td> <Td> January 6, 2013 (2013 - 01 - 06) </Td> <Td> 610 </Td> </Tr> <Tr> <Td_colspan="7"> A fire caused by electrical wiring destroys Lou and Peter's home and puts the lives of Georgie and Phoenix at risk . Ty and Amy end up putting their good news about their engagement on hold . Amy helps Georgie when she has problems with a still spooked Phoenix . Clint turned down Jack for Georgie's long - term foster parent, so both Tim and Lou try to help . Lou and Peter become Georgie's long - term foster parents . </Td> </Tr> <Tr> <Th> 96 </Th> <Td> 11 </Td> <Td> "Blowing Smoke" </Td> <Td> T.W. Peacocke </Td> <Td> Ken Craw </Td> <Td> January 13, 2013 (2013 - 01 - 13) </Td> <Td> 611 </Td> </Tr> <Tr> <Td_colspan="7"> Amy must make a hard decision about Phoenix when Jeremy's horse Buckingham gets hurt, which puts his jumping career in jeopardy . Caleb seems to like Lou, which leads him to punching Peter . Jeremy gets Amy drunk in an attempt to get Phoenix . </Td> </Tr> <Tr> <Th> 97 </Th> <Td> 12 </Td> <Td> "Playing With Fire" </Td> <Td> TW Peacocke </Td> <Td> David Preston </Td> <Td> January 20, 2013 (2013 - 01 - 20) </Td> <Td> 612 </Td> </Tr> <Tr> <Td_colspan="7"> Lou hosts a horse show at Heartland while dealing with her problems with Peter . Both Mallory and Georgie are training for the showjumping . Mallory's coach is Jeremy and she will ride Spartan, while Georgie will ride Phoenix and is being coached by Amy . Mallory discovers Jeremy kissing Cassandra just before her turn to jump . She rides distracted, leading to her and Spartan falling after a jump . </Td> </Tr> <Tr> <Th> 98 </Th> <Td> 13 </Td> <Td> "Waiting For Tomorrow" </Td> <Td> Chris Potter </Td> <Td> Leila Basen </Td> <Td> February 10, 2013 (2013 - 02 - 10) </Td> <Td> 613 </Td> </Tr> <Tr> <Td_colspan="7"> One of Spartan's back legs is broken, and Amy faces a tough decision . Tim and Jack focus on how they are going to get the money for the vet bill . Mallory and Georgie are suffering from the events at the horse show, in very different ways . </Td> </Tr> <Tr> <Th> 99 </Th> <Td> 14 </Td> <Td> "Lost and Gone Forever" </Td> <Td> Chris Potter </Td> <Td> David Preston </Td> <Td> February 17, 2013 (2013 - 02 - 17) </Td> <Td> 614 </Td> </Tr> <Tr> <Td_colspan="7"> Ty's future as a vet is in jeopardy when there's a fatality at Scott's clinic . Lou has to deal with an overeager Caleb while she has to convince Georgie to play her new recorder for her music class . </Td> </Tr> <Tr> <Th> 100 </Th> <Td> 15 </Td> <Td> "After All We've Been Through" </Td> <Td> Stephen Reynolds </Td> <Td> Mark Haroun </Td> <Td> March 3, 2013 (2013 - 03 - 03) </Td> <Td> 615 </Td> </Tr> <Tr> <Td_colspan="7"> To prove Jeremy was responsible for Buckingham's death, Ty searches for evidence . Jeremy is guilty of killing his horse, and Ty is rehired . Amy works with Spartan now that has finally come back home, but he refuses to leave the barn . Lou and Peter's romantic weekend is interrupted by Eden, Peter's ex-wife . Mallory tries to find Jack a date, since Lisa is in France and they have decided to put their relationship on hold . Spartan faces his fear . </Td> </Tr> <Tr> <Th> 101 </Th> <Td> 16 </Td> <Td> "Born to Buck" </Td> <Td> Stephen Reynolds </Td> <Td> Ken Craw </Td> <Td> March 24, 2013 (2013 - 03 - 24) </Td> <Td> 616 </Td> </Tr> <Tr> <Td_colspan="7"> Amy is having trouble dealing with a roping horse that only wants to buck and Caleb, who isn't sure he wants to ride broncs anymore . Shane and Miranda are back in Hudson . Lou and Amy find out that Miranda and Tim have been in a relationship for months . Miranda and Tim break up . Jack is offered a career opportunity and takes the job . </Td> </Tr> <Tr> <Th> 102 </Th> <Td> 17 </Td> <Td> "Breaking Point" </Td> <Td> Dean Bennett </Td> <Td> Mark Haroun </Td> <Td> March 31, 2013 (2013 - 03 - 31) </Td> <Td> 617 </Td> </Tr> <Tr> <Td_colspan="7"> Amy and Lou help Georgie regain her confidence as a showjumper when classmate Olivia makes her question her place in the family . Eric Williams (who has bought the farm where Phoenix used to live and its livestock) sees his natural potential as a jumper . Amy doesn't have the papers to prove she's Phoenix's new owner . Jack and Tim fight over their business partnership when they learn that their cattle may have been exposed to BSE (Bovine spongiform encephalopathy). Jack wants to buy out Tim, and their cattle are fine . Lou tells Georgie that everyone is behind her adoption . </Td> </Tr> <Tr> <Th> 103 </Th> <Td> 18 </Td> <Td> "Under Pressure" </Td> <Td> Dean Bennett </Td> <Td> Heather Conkie </Td> <Td> April 7, 2013 (2013 - 04 - 07) </Td> <Td> 618 </Td> </Tr> <Tr> <Td_colspan="7"> With the threat of losing Phoenix to Eric looming over their heads, things become even more complicated at Heartland when Georgie gets a surprise visit from her brother Jeff . When Jeff reveals he wants to raise Georgie, the family is faced with the possibility of losing her . Amy has second thoughts about going on a road trip to Las Vegas with Ty . Meanwhile, Peter's idea of moving to Vancouver is impossible for Lou to wrap her head around, and Jack ends his partnership with Tim - for good . Georgie's brother buys back Phoenix for her and tells her to stay at Heartland . In the end of the episode, Jack has a heart attack . </Td> </Tr> </Table> <Tr> <Th> No . overall </Th> <Th> No. in season </Th> <Th> Title </Th> <Th> Directed by </Th> <Th> Written by </Th> <Th> Original air date </Th> <Th> Prod . code </Th> </Tr>

In what episode of heartland do amy and ty get engaged