Enterprise is swallowed by an otherworldly vessel occupied by noncorporeal creatures who seek to trade consciousnesses with the crew members.

Joseph Will (Lt. Michael Rostov)

Matthew Kaminsky (Crewman Cunningham)
Steven Allerick (Ensign Cook)
Alexander Chance (Crewman #1)
Valerie Ianniello (Female Crewman)

• The aliens' ship is deteriorating and they are trying to find host bodies to survive. There are hundreds of them and they capture ships as they can.