Star Trek The Next Generation - Q Are Cordially Uninvited

the long version

The wedding of Captain Jean-Luc Picard to Doctor Beverly Crusher was a small, private affair overseen by the mayor of La Barre, France, and witnessed by the groom’s sister-in-law and the mayor’s wife. At least that’s what the happy couple always told their friends. On the anniversary of that blessed day, however, Worf and Geordi La Forge manage to coax the real story out of the pair, to discover a tale of mythical treasure and a lost civilization in the Delta Quadrant. It all begins when the omnipotent being Q crashes the festivities, declaring himself best man and bringing along an unwilling guest as a surprise for the groom…