Episode 4 is the fourth episode in Lost in Space series. It will premiere on April 13, 2018.
John (TOBY STEPHENS) and Maureen (MOLLY PARKER) make a surprising discovery, explaining why they haven't been able to make contact with the Resolute. Judy (TAYLOR RUSSELL) learns the truth about the robot's mysterious past and forces Will (MAXWELL JENKINS) to make a difficult decision. Meanwhile, Dr.Smith (PARKER POSEY) is ready to launch a plan of her own.