<P> An old friend of John Winchester, Ellen Harvelle is the wife of hunter William Anthony Harvelle and the mother of Jo Harvelle . She runs Harvelle's Roadhouse, a saloon and pub frequented by hunters of supernatural creatures . When Sam and Dean Winchester arrive there in the second season episode "Everybody Loves a Clown", a wary Ellen holds them at gunpoint until she learns that they are John's sons . She gives them information regarding a dangerous hunter named Gordon Walker in "Bloodlust", while Sam and Dean later explain to her in "Simon Said" about the demon Azazel's planned war against humanity . Her relationship with the brothers is strained in the episode "No Exit", where she reveals that she believes her husband's death was the result of a mistake made by John Winchester while they were working together on a hunt . However, she admits to Sam in "Hunted" that her husband's death was not John's fault and that she had forgiven him a long time ago . She also does not blame the brothers for Jo's decision to go off hunting by herself . </P> <P> The Roadhouse is destroyed by demons in "All Hell Breaks Loose, Part One", and her whereabouts are unknown throughout the episode . It is revealed in "Part Two" that she had left the Roadhouse to run a few errands . She, the Winchesters, and fellow hunter Bobby Singer track Azazel's activities to a cemetery surrounded by a giant devil's trap made of railroad tracks . Unable to step inside the giant symbol without becoming trapped and powerless, Azazel forces the human Jake Talley to do his bidding . The hunters are unable to stop Jake from opening a gateway to Hell in a mausoleum there, and the devil's trap is broken as hundreds of demons are released into the world . As the brothers then kill Azazel, Ellen and Bobby close the gateway . </P> <P> In the fifth season episode "Good God, Y'all!", Ellen reappears with Jo to help fellow hunter Rufus kill demons that have laid siege to a small town . By the time the Winchesters arrive, it appears that Jo, Rufus, and some other townspeople have become demonically possessed . However, Ellen and Dean eventually realize that War, one of the Four Horsemen of the Apocalypse, is making the townspeople see each other as demons . Sam and Dean break War's spell just as Ellen is about to be killed by one of the town's residents . In "Abandon All Hope ...", Ellen and Jo once again team up with the brothers to find Lucifer and kill him . Upon their arrival in a seemingly abandoned small town, however, they are attacked by the demon Meg and a pack of hellhounds . Jo is severely mauled, forcing them to barricade themselves inside a hardware store . Knowing that her wounds are fatal and that Lucifer must be stopped, Jo convinces them to build a bomb and to use her as bait for a trap . Ellen stays behind and opens the front doors while the Winchesters escape onto the roof . After Jo dies in her arms, Ellen blows up the building, killing the hellhounds and herself in the process . </P> <P> When the angel Balthazar changes history in the sixth season episode "My Heart Will Go On" so that the Titanic never sank, Ellen is restored to life and is married to Bobby . However, the original timeline is eventually restored . </P>

When did ellen and jo come back in supernatural