After returning to Cloverton, the Doom Patrol gather for a final mission one that proves to be unlike any they've had before.

After discovering a series of portals within the time stream, Vic secures one hour for each of his team members to search for their longevities. As the Doom Patrol is thrown into pivotal moments from the past, their futures come into focus as they attempt to save Rita, themselves, and the world.

A music-filled Immortimas Day forces the Doom Patrol to reckon with the people they've become -- and who they once were. 

Sent back to Earth after the cosmic blast, the Doom Patrol must figure out what to do with Immortus which unexpectedly leads them to a superhero parade. Meanwhile, Dorothy and Casey team up for a new mission, and Larry regards his future from a grim new perspective.

While trapped in Orqwith, Jane ropes Cliff into hunting for their longevities, as Vic gives Deric his own superhero moment by taking on the Scissormen. Meanwhile, Rouge tries to convince a gloomy Rita into joining the rest of the team.

With the end of existence imminent, a determined Doom Patrol seek to get their longevities back and save the universe.

When Rita awakens unexpectedly aged, a mishandled spell teenage-ifies the Doom Patrol just as Willoughby asks for their help stopping the rise of Immortus and the end of the world as they know it.

When the safety of Danny and everyone housed within is compromised, Dorothy is forced to step up with some unexpected help.

Larry and Jane seek new purpose in Keeg and Kay's absence. Vic attempts to reconnect with his old crew. A mysterious invitation to a retrospective comes at the perfect time for a newly ousted Rita.

A desperate Doom Patrol strategize ways to wipe out the zombie butts… and reverse their grim future.

As they struggle to function as a cohesive group, the Doom Patrol are confronted by a horrifying realization in the future.