Na een plotse crisis werken de drie bemanningen op Mars samen.
Gastrollen:
Nate Corddry(Larry Wilson), Noah Harpster(Bill Strausser), Daniel David Stewart(Nick Corrado), Alexander Sokovikov(Rolan Efimovitch Baranov), Goran Ivanovski(Dr. Dimitri Mayakovsky), Madeline Bertani(Amber Stevens), Lev Gorn(Grigory Kuznetsov), Vera Cherny(Lenara Catiche), John Hartmann(Administrator Richard Truly), Randy Oglesby(Governor/Vice President Jim Bragg), Jessica Tuck(Christine Francis), Robert Bailey Jr.(Will Tyler), Pawel Szajda(Alexei Poletov), Amol Shah(Adarsh Sethi), Nick Boraine(Lars Hagstrom), Mandy Levin(Sandy Bostik), Ayinde Howell(Benjamin Harmon), Casey Feigh(John Blystone), Chris Gann(William Piltz), Meghan Leathers(Pam Horton), Anne Beyer(Louisa Mueller), David Chandler(Jimmy Stevens), Ilza Ponko(Isabel Castillo), Delaney Claire Evans(Avery Stevens), Parker Reese Evans(Avery Stevens), Vlad Pavlov(Pavel Zaitzev)