 A massive ship pulls Enterprise in and disables the engines as well as the weapons. Archer, Trip and Reed start inspecting the alien vessel, but a wispy energy being enters Trip briefly. Back on Enterprise Phlox determines there s nothing wrong with Trip, but he remembers being with his girlfriend Lisa on a beach in Florida. It s not long before the wispy creature takes over Trip again. This time the non-corporeal being tells Archer they re explorers and are interested in how corporeal beings live their lives. He offers everyone on Enterprise to do  the crossing  and experience what s it like to be non-corporeal. Archer doesn t trust it.