<P> Heartland airs in Canada on the regional CBC channels at 7 pm (7: 30 pm in Newfoundland) on Sundays . Beginning April 23, 2017, the 10th season of Heartland airs in the United States on the Up TV network on Sunday evenings at 8: 00 pm Eastern . From its first episode the plot focuses on Amy, who inherited her mother's gift of being able to heal abused and damaged horses, after a tragic accident that led to big changes in everyone's lives . </P> <P> The show became the longest - running one - hour scripted drama in the history of Canadian television, when it surpassed the 124 episodes of Street Legal on October 19, 2014 . As of February 4, 2018, 189 episodes of Heartland have aired . Season 11 began on Sunday, September 24, 2017 at its usual time . Filming for Season 12 began on June 1, 2018 . </P> <Table> <Tr> <Th_colspan="2"> Season </Th> <Th_colspan="2"> Episodes </Th> <Th_colspan="2"> Originally aired </Th> </Tr> <Tr> <Th> First aired </Th> <Th> Last aired </Th> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 13 </Td> <Td_colspan="1"> October 14, 2007 (2007 - 10 - 14) </Td> <Td> February 24, 2008 (2008 - 02 - 24) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 18 </Td> <Td_colspan="1"> October 5, 2008 (2008 - 10 - 05) </Td> <Td> March 22, 2009 (2009 - 03 - 22) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 18 </Td> <Td_colspan="1"> October 4, 2009 (2009 - 10 - 04) </Td> <Td> March 28, 2010 (2010 - 03 - 28) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 18 </Td> <Td_colspan="1"> September 26, 2010 (2010 - 09 - 26) </Td> <Td> March 27, 2011 (2011 - 03 - 27) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="3"> Film </Td> <Td_colspan="2"> December 12, 2010 (2010 - 12 - 12) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 5 </Td> <Td_colspan="2"> 18 </Td> <Td_colspan="1"> September 18, 2011 (2011 - 09 - 18) </Td> <Td> March 25, 2012 (2012 - 03 - 25) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 6 </Td> <Td_colspan="2"> 18 </Td> <Td_colspan="1"> September 16, 2012 (2012 - 09 - 16) </Td> <Td> April 7, 2013 (2013 - 04 - 07) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 7 </Td> <Td_colspan="2"> 18 </Td> <Td_colspan="1"> October 6, 2013 (2013 - 10 - 06) </Td> <Td> April 13, 2014 (2014 - 04 - 13) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 8 </Td> <Td_colspan="2"> 18 </Td> <Td_colspan="1"> September 28, 2014 (2014 - 09 - 28) </Td> <Td> March 29, 2015 (2015 - 03 - 29) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 9 </Td> <Td_colspan="2"> 18 </Td> <Td_colspan="1"> October 4, 2015 (2015 - 10 - 04) </Td> <Td> March 20, 2016 (2016 - 03 - 20) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 10 </Td> <Td_colspan="2"> 18 </Td> <Td_colspan="1"> October 2, 2016 (2016 - 10 - 02) </Td> <Td> March 26, 2017 (2017 - 03 - 26) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 11 </Td> <Td_colspan="2"> 18 </Td> <Td_colspan="1"> September 24, 2017 (2017 - 09 - 24) </Td> <Td> April 8, 2018 (2018 - 04 - 08) </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Season </Th> <Th_colspan="2"> Episodes </Th> <Th_colspan="2"> Originally aired </Th> </Tr>

How many episodes does heartland season 10 have