EOS 10 Justin McLachlan and PlanetM

In the season four premiere, Ryan confronts Dr. Urvidian over a recently and accidentally revealed secret. Meanwhile, Jane and Levi scheme to win a fancy dinner. Starring Dan Barry, Justin McLachlan, Charles Lipper, Lena Winter and Natalie Cutcher. This episode also starred Jesse-Buck Brennan. "Who's Your Daddy" was written by Justin McLachlan.

Dr. Ecobar opens a new clinic on EOS10 and threatens to steal away the infirmary's best patients—and doctors. Meanwhile, Ryan investigates the mysterious reappearance of a ship from his past. Starring Dan Barry, Justin McLachlan, Charles Lipper, Lena Winter and Natalie Cutcher. This episode also starred Nanci Burrows. Private Practice was written by Craig McLachlan.

Ryan finds the key he's been looking for, but it unlocks more than just a door. Starring Dan Barry, Justin McLachlan, Charles Lipper, Lena Winter and Natalie Cutcher. This episode also starred Jesse-Buck Brennan. "Morpheus" was written by Justin McLachlan.

With the help of some old friends, Levi procures a mysterious gift for the Interface and life on the station might never be the same again—for anyone. Starring Dan Barry, Justin McLachlan, Charles Lipper, Lena Winter and Natalie Cutcher. This episode also starred Jesse-Buck Brennan and Nanci Burrows. Written by Justin McLachlan.

Ryan wakes up with a big surprise trapped in his head, and there's only one person on EOS10 he can turn to for help: Dr. Ecobar. Starring Dan Barry, Justin McLachlan, Charles Lipper, Lena Winter and Natalie Cutcher. Guest starring Nanci Burrows. Written by Justin McLachlan.

As the crew prepares for a memorial service, the treachery of one of their own is exposed. Starring Dan Barry, Justin McLachlan, Charles Lipper, Lena Winter and Natalie Cutcher. Guest starring Annie Chang. Written by Justin McLachlan.