In this episode, Lieutenant Worf, the Klingon Chief of Security of the Federation Starfleet starship USS Enterprise-D, suffers a crisis of faith which leads him to an encounter with the seemingly resurrected messiah of ancient Klingon religious beliefs. He soon finds himself caught between supporting the religious figure and the more secular leader of the conventional Klingon political power structure.

As the episode begins, Lt. Worf fails to report to his bridge duty station and Lt Commander Data and First Officer Commander William Riker become concerned. Riker finds Worf's quarters filled with incense and burning candles while his chief of security sits before a small fire nearby in a nearly trance-like state.

A repentant Worf explains to Picard that he was attempting to reconnect with his Klingon spiritual beliefs by performing a Klingon ritual in an attempt to summon a vision of Kahless, the original messianic warrior who founded the Klingon Empire.

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