Episode Detail: Trees Made of Glass - Threshold
Part 1 of two. An alien craft's appearance near a cargo freighter in the Atlantic Ocean seems linked to the deaths of most of the crew. Dr. Molly Caffrey (Carla Gugino), a government contingency analyst, is called in to investigate, and she assembles a team that includes a NASA microbiologist, a physicist, a covert operative, and an expert in languages and mathematics to probe the mystery. Baylock: Charles S. Dutton. Fenway: Brent Spiner. Ramsey: Peter Dinklage. Cavennaugh: Brian Van Holt.