"Back to the Finale: Part II" is the seventh episode of the sixth season of DC's Legends of Tomorrow, and the eighty-ninth episode overall. It aired on June 20, 2021.
With Ava a wreck, Behrad the Legends make a last-ditch effort to keep Sara from being abducted in the first place, even knowing that it will alter the timeline. Sara grapples with what she has just discovered about herself but is also shocked when Rory finds her on the mystery planet. With no time to spare, Sara, Mick and Gary devise a plan to help defeat Bishop. Meanwhile, Spooner envisions what her life would be like if she hadn’t joined the Legends.[src]