After uncovering a devastating secret about Rosa’s death, Liz takes matters into her own hands to protect herself and those around her. However, her plans are sidelined after a day with Mimi, Maria and Alex leads to a new revelation about Rosa. Elsewhere, Max takes aim at Wyatt, while Cameron decides whether she’s going to help Sergeant Manes.

Determined to regain control of her life in the aftermath of Noah's death, Isobel makes a risky choice despite its potential consequences. Alex and Michael work together to unravel the mystery surrounding the night Nora's spaceship crashed in 1947.