A rift in the fabric of space threatens the lives of Jean-Luc Picard and the Stargazer's crew. Lean-Luc Picard and the Stargazer crew must seal an anomaly in the Mirror Universe, a rift that may ultimately destroy the Federation. However, the warlike Balduk refuse to grant the Stargazer passage to the vicinity of the tear. His small, ill-equipped ship could very well be lost in the struggle, but the young Captain Picard won't even consider that possibility.