After an exile in space, human survivors return to a wildly transformed Earth…only to discover that the human race never truly left. Staking out their place in this world, they face the peril and dilemmas that come with rebuilding society.
After exposing Kane's plan to reduce the population of the Ark, Abby and Chancellor Jaha notice a signal from Earth and realize at least some of the 100 must still be alive.
S1E5 41 min