Supernatural - Season 15

The Winchesters and Castiel gain an unexpected ally as the souls released from Hell by Chuck threaten to overwhelm them. Their ally soon tells them the magnitude of the threat that now faces them.

Rowena arrives in Harlan to help Castiel and the Winchesters contain the ghosts. Two unexpected allies appear to help them, but things don't go as planned. Meanwhile, Chuck holds a family reunion in Reno.

To seal the rupture, Castiel and Belphegor must travel to Hell to find a relic with the power to summon the spirits back. Rowena asks Sam to help her, and Ketch gets a visitor.

The Winchesters travel to Iowa to investigate a vampire-related death, and soon find themselves in the middle of a family affair.

Sam continues to have dreams of killing Dean, and he and Dean investigate a case in Colorado where five victims have had their heart torn out.

Sam and Dean meet an old friend, and Sam goes to Rowena's apartment to find a resurrection spell. Meanwhile, Castiel finds himself drawn into a monster-hunting case when a local boy turns up dead.

Dean goes on a Hunt by himself and meets an old friend. Castiel returns to the bunker and calls in a specialist when Sam's condition takes a turn for the worse.

Sam, Dean, and Castiel travel to Hell to talk to Michael and see if he knows Chuck's weakness, and they meet the new ruler of Hell. When they return to Earth, the Winchesters are reunited with a member of the family they thought was gone for good.

Sam and Eileen are faced with the brutal truth. Meanwhile Dean and Cass work together in the hopes of getting a step ahead of Chuck.

Sam and Dean hit the road to help an old friend, but it appears that their luck may have finally run out and they are the ones who may be in need of rescue.

Sam and Dean press their luck in a winner-takes-all game of pool. Meanwhile, Castiel hunts down a would-be murderer, but not for reasons one might think.

Sam and Dean respond to a frantic call and together along with Castiel, Jack and Jody, assist in an extraordinary and heartbreaking rescue. Billie surprises everyone with a visit to the bunker.

A search for the one thing that may give the Winchesters an edge against God leads Sam and Dean to Jo's door and to a secret that may have died with Ruby. Meanwhile, Castiel asks Jack to do the unthinkable to help the brothers in their quest.

Sam and Dean discover a wood nymph living in the bunker who is determined to protect her family, at any cost.

Castiel and Jack work a case involving members of a local church. Meanwhile, Sam and Dean go off in search of Amara.

Sam and Dean are asked to investigate the murder of a childhood friend, calling them back to a motel from their past and perplexing the brothers with a case they thought was solved a long time ago.

Dean hits the road with Jack who needs to complete a final ritual in the quest to beat Chuck. A difference of opinion leaves Sam and Castiel behind looking for answers to questions of their own.

With the plan in full motion, Sam, Dean, Castiel and Jack fight for the good of the common goal.

Everything is on the line as the battle against God continues. A familiar face returns to join the fight.

After 15 seasons, the longest running sci fi series in the US is coming to an end. Baby, it's the final ride for saving people and hunting things.