As a special gift to Chuck fans, Linda Hamilton will return as Chuck's mama, Mary Bartowski, for the show's two-hour series finale, airing January 27.

Asked what brings Mary back into her son's life, executive producer Chris Fedak would only tell me, "If I said anything, I'd be ruining too many good spoilers."

November 30 marked the shooting of the finale's final scene. "There were a lot of tears," Chris says. "It was a very dramatic, tear-filled experience. We have been cherishing each day as we've neared the end."

Subscribe to TV Guide Magazine now!