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Angel, season 2 episode 13 «Happy Anniversary»: air date February 6, 2001. Episode overview, season trailer and the cast of Angel.
Gene is a brilliant physicist, smitten with love, who is on the verge on discovering a method of manipulating the time and space relationship. One night at karaoke, Lorne discovers that Gene has no future past the next day as well as the rest of the world. Lorne and Angel set out to prevent Gene from freezing time around the world to preserve his fractured relationship. Meanwhile, Cordelia, Wesley, and Gunn establish their own private investigation firm and stumble upon an intricate case involving a wealthy family and a demon.