So, how's things in the 25th century? Well, Dr. Beverly Crusher is vaporizing baddies trying to board her beleaguered ship and sending coded messages to Picard -- whom she has not spoken with in 20 years. Raffi is working undercover to find stolen weapons on M'talas IV. Seven of Nine is working as first officer (under a pig-head of a captain) on the USS Titan.
As for Jean-Luc? He is moving house to join his girlfriend(?)-bodyguard(?)-housekeeper(?) Laris on her diplomatic posting in the Chaltok system. And, you know, letting go of the past.
And *that* is when he gets the message from Beverly -- and, as is typical, all hell(bird) breaks loose.