Natalie, Dylan, and Alex, three glamorous, tough-as-nails, investigative agents - who work for the Charles Townsend Detective Agency - are sent undercover to retrieve two missing jewelry bands. These are no ordinary wedding rings. They contain valuable information that reveals the new identities of every person in the FBI's Witness Protection Program. After five of the program's participants turn up dead, only the Angels can stop the perpetrator, using their expertise as masters of disguise, espionage and martial arts.