Last season on "Fringe," Lincoln Lee (Seth Gabel) proved to be a prominent figure in the alternate universe, first as an agent alongside a brainwashed Olivia Dunham (Anna Torv) and later as the replacement director of Fringe division following the disappearance and murder of the alternate Phillip Broyles (Lance Reddick).
The Lincoln Lee of our world was also introduced in a single episode last season, when he teamed up with Peter Bishop (Joshua Jackson) and Olivia while she was possessed by William Bell (don't ask). And while that case seemed to be a one-off appearance, Gabel's promotion to series regular means that we'll be seeing more of the alternate Lincoln Lee and his slightly geekier counterpart form our world in the coming season.
In the full length trailer for the new season of "Fringe," the Lincoln Lee of our world is brought on to the Fringe team by Olivia and he gets his first taste of the special brand of insanity that Dr. Walter Bishop (John Noble) cooks up in his lab, as well an introduction to Olivia's fellow field agent, Astrid Farnsworth (Jasika Nicole).
The brief synopsis for the episode has also been revealed:
The teams on the two worlds work together to solve the case of a shapeshifter, and Agent Lincoln Lee joins his world's team when no one remembers the existence of Peter Bishop.
If you want to get up to speed on every major storyline so far, check out our "Catching up on 'Fringe'" special feature. And don't miss the fourth season premiere of "Fringe," this Friday, September 23 on Fox!