The Robinsons find the Resolute on their side of the rift and abandoned, and are soon evading one of the alien robots. Meanwhile, Smith takes steps to erase evidence of her old life and remembers the past.

Judy runs against time to save John after the drill shaft collapses. Penny convinces Vijay to help her gather evidence against Smith, and Maureen and Will travel to the planet with Ben to investigate Will's connection to the Robot.