Changes

Dean ans and Castiel try to contact Eileen and Sam before they travel to Purgatory to retrieve a [[leviathan blossom]], however they soon realize that Chuck has captured them. Dean tracks Eileen's cell phone to the Lucky Elephant casino in Milford, Nebraska, though but Castiel insists that they need to go to Purgatory. Dean shoots him down, but he yells at Dean for being so stupid as they don't have anything that can hurt Chuck and finishing Michael's binding spell takes priority.

Upon arrivalpassing through the portal, Castiel explains states that he never saw a blossom during his time in Purgatory, meaning it's the only flower in the realm. They manage to capture a [[leviathan]] and force it to reveal where they can find the blossoms, which grow out of the soil when leviathan die. He also explains reveals that [[Benny]] was killed by the his fellow vampires after helping Sam and Bobby out of Purgatory. While en route, Dean mourns Benny's death and Castiel remembers how he unleashed the leviathans into the world and continues to regret his past mistakes. Dean says he knows that Castiel is sorry about Belphegor and Mary's deaths, but Castiel clarifies that he talks is talking about Jack. He tells Dean that he already apologized but Dean refused to hear it because he was too angry to care about his friend. He left, but Dean didn't stop him.

The trio arrive at a leviathan graveyard riddled with blossoms and skeletons. However, the area is guarded by an angel trap. The leviathan reveals that they plan to take them to Eve so she can have revenge for killing her and her alphas. After Dean gets knocked unconscious, but Castiel offers to go peacefully in exchange for sparing Dean. They take the angel and destroy the blossoms. Dean wanders around Purgatory to find Castiel, but with only minutes left before the portal closes, he stops and starts praying. He admits that he should have stopped him Castiel from leaving, but he didn't because it anger was easier than admitting that he was wrong about everything that happened when Jack died. He says he can't control his anger whenever when it comes out , no matter how much he wants to. He tells Castiel that he forgives him for everything that happened and hopes he can hear him. Meanwhile, Castiel locates has located a leviathan blossom and manages to fight off the leviathans and escape. He makes his way to Dean at in the nick of time. Dean tries to apologizeface to face, but Castiel says he doesn't have to, having received his prayer.

They arrive at the Bunker and start putting the spell together, and Castiel mixes his blood into the mix as Dean cannot carry the Marka second time. They make their way to Milford to save Sam and Eileen, however but Chuck forces Eileen to attack them. They pass the orb to Sam, who, after seeing having seen what would happen if they trap himGod, drops the orb and allows Chuck to crush it and heal their wounds from [[the Equalizer]]. Chuck makes his His leave after Dean tolls him tells Him that they'll never give him Him the ending he He wants.

At the Bunker, Sam explains why he couldn't trap chuckChuck, but and Dean says it's good enough for him. Castiel says that Chuck may be gone, but heHe'll be back.