They're brilliant, they're beautiful,...and they work for Charlie. Dylan: The wild child with a tough exterior but fierce loyalties. Natalie: The sunny, shy girl next door who's also a demon behind the wheel. Alex: The ultimate class act, sophisticated -- and unstoppable with a laptop. The case: Uncover the identity of a rogue FBI agent, and ensure the security of HALO: the Hidden Alias List Operation. Aka the witness protection program. HALO's list of witnesses has been encrypted into a pair of titanium rings -- and one of the rings has gone missing. Despite an agency fail-safe initiative, federal witnesses are at risk of being uncovered by any skilled hacker. But not if the Angels can help it. From Hollywood premieres to race-car pursuits -- with a few blasts from Dylan's past -- it's head-to-toe glamour and nonstop action for the independent women who always win!