On a mission to look for food and water, Harriet and Douglas discover a dinghy that is only big enough for two people. They selfishly conspire to leave the island and return for the others later. Meanwhile, Brett enlists the help of Arnab and Susan to design and build a new luxury shelter, complete with spa and cinema room. It will make the Swiss Family Robinson's achievements look pathetic! In an attempt to pacify an emotionally distraught Susan, Douglas reveals the secret escape plan promising her a place aboard the dinghy and Susan's reaction surprises even her. The dinghy double-crossing begins to spiral out of control, leaving Douglas in a state of turmoil and Brett paranoid that machinations are afoot.