After landing on planet M-113, the Enterprise is stalked by a creature which can assume the shape and form of anyone it chooses, and which kills by removing the entire salt content of its victims' bodies.
A patron of a singles club receives a hostile phone call on the club's private phone, before being run down and killed in the parking lot.
Buz vows to end the reign of a surfing `king' after seeing his callous reaction to a fellow surfer's senseless death.