Armageddon, Part 1

Armageddon, Part 1 is the first episode of the eighth season. It opens up a five episode crossover and aired on November 16th, 2021.

Synopsis
''A powerful alien threat arrives on Earth under mysterious circumstances and Barry, Iris and the rest of Team Flash are pushed to their limits in a desperate battle to save the world. But with time running out, and the fate of humanity at stake, Flash and his companions will also need to enlist the help of some old friends if the forces of good are to prevail.''

Central City Street
The earth begins to shake recklessly when people around the place begin to panick and run. Barry arrives downtown to find nobody causing anything. Despero walks down the street as Barry speeds in front of him. Despero explains his plans to destroy the earth but first must remove Flash from existence, and he was the one who caused the shaking and damage to the city. He promises he'll kill The Flash. Barry rushes towards him but Despero disappears just before Barry catches him.

Star Labs
Barry returns to Star Labs and reveals everything to his team. Iris suggests Barry recruit more heroes to save Earth, Barry agrees but also mentions how he will "try" to kill him off. Iris leaves. Bart and Nora return from the future to ask if they need help. Barry tells them to protect the timeline. Nora doesn't hesitate. Bart gets angry. But does it anyway. Barry talks to Caitlin and says he'll go to Gotham to get Batwoman.

Gotham City
Barry speeds into the City as fast as he can and stops in Batwoman's hideout. Ryan Wilder walks over to Barry. Barry reveals he knows who Ryan is and convinces her to help them against Despero. He takes her with him back to Star Labs.

Waverider
Sara Lance standing there and gets contacted somehow. She opens up a portal and leaves the Ship to Star Labs.

Star City (Future)
Mia Queen is collected by a speedster.

Star Labs
Barry returns with the team which now consists of Barry, Bart, Nora, Sara, Ryan, and Mia, all of them confused. Barry explains to them all something is on Earth Prime and apologizes -- but they all head out to the field.

Streets (Central City)
The Group heads out into the streets where Despero