On Legends of Tomorrow Season 3 Episode 16, Ava's gone missing from the Time Bureau, so Gary reaches out to Sara and Ray to help track her down. But, while searching for Ava, they uncover the mystery that Rip Hunter attempted to cover up: she's a clone from Vancouver in the year 2213 of a species created solely to protect the world and uphold justice and order. Unaware of her history, Ava follows the group to the future and finds out exactly who she is and what this means for her life going forward.
Meanwhile, history is solidifying as the loss of Amaya's totem is beginning to affect Mari's life when she gets hurt in Detroit trying to save people from a burning building as a powerless vigilante. Due to this, Nate and Wally go out in the field to protect Mari and convince her to step down from vigilantism until they can get the totem back from Mallus, but Kuasa has different plans and tricks Nate into staying and falling into Darhk's hands.
And, while the rest of the team are doing something worthwhile, Zari is fighting with Mick while trying to train him to use the fire totem against Mallus.