Philip makes an unexpected connection, Marcy helps David cope with his trauma, and MacLaren discovers a shocking truth that Kathryn has been hiding from him.
Did You Know?
The episode title "Protocol 4" refers to the standing orders travelers are supposed to memorize and follow. Protocol 4 states, "Don't reproduce." See more
The salesmen in the episode that locks a bunch of people in a hotel room uses a key card to lock the room. Such key cards aren't built to do that. They only unlock doors. Such doors are either left to lock or not by default when they close. Then the key card is used to open them. See more