When Sharona and her son Benjy drag Monk off for a holiday in California, Benjy witnesses a murder through a telescope, but the investigation throws up no evidence of any crime.
Sydney and Nigel travel to Nashville, Tennessee, and Germany when a musician needs help finding a guitar Elvis Presley gave to him.
Bo goes undercover to help Dyson investigate a string of human deaths, and finds that a deadly kind of class warfare is underway.
Aboard an ocean research vessel, Mutant X discovers the crew are being stalked by a prehistoric creature believed to be extinct.