Anna introduces her pilot program to invite select groups of humans to stay on each of the 29 space ships, Ryan must deal with the fact that Valerie's pregnancy is wildly accelerated. Tyler learns a secret about his mom and one of the team makes a sacrifice to save Ryan.
Elenco: Elizabeth Mitchell , Morena Baccarin , Alan Tudyk , Brittney Irvin , Charles Mesure , Christopher Shyer , David Richmond-Peck , Joel Gretsch , Laura Vandervoort , Logan Huffman , Lourdes Benedicto , Mark Hildreth , Morris Chestnut , Scott Wolf .