International Unit Chief Jack Garrett and his team requires assistance from the BAU when a family of four is abducted during their Barbados vacation.
Jules' dinner guests aren't exactly who she expected, and there's a stakeout to catch a cupcake thief.
Jules fears her father is lonely and tries to set him up with Grayson as a best friend. Laurie helps Andy fit in with a cool mum group, and Travis and Ellie open up in the `winebulance'.
Victorian England meets futuristic space travel when three women on the planet Argelius are apparently murdered by Jack the Ripper - in the form of the Enterprise's chief engineer. With Scotty in the dock, the crew of the Enterprise find their own lives are at risk from an evil being feeding on the epidemic of fear and panic.
Savi's friends help her bid farewell to her house, April realises her roles are colliding, Joss tries to stop Harry from going back to Australia, and Karen faces a dilemma involving her lover and a client.