Encounter at Farpoint

Captain Picard takes command of the Federation's new Galaxy-class starship, the Enterprise. He not only takes over the Enterprise but has his first encounter with an extremely powerful life form known as Q, who proceeds to put humanity on trial for its crimes. Q makes their first mission, to Farpoint Station on Deneb IV, an extreme test of humanity's right to exist.

Synopsis adapted from TVmaze (CC BY-SA 4.0)