Sarah and Becker investigate an anomaly that re-opens at Johnson's HQ and end up fighting for their lives against Megopterans, while Danny, Abby and Connor hunt for Helen in the future. The trio discover Helen plans to prevent the evolution of mankind in order to save the world, resulting in a chase across a Cretaceous forest and into Pliocene Africa. Danny confronts Helen at the location of the human ancestor, Australopithecus, only to find she has poisoned a small group already. Helen delights in her apparent victory, but a raptor that followed Danny through the anomaly charges at Helen and knocks her off a cliff, killing them both. Having ensured the other hominids have survived, Danny then makes his way back to the anomaly, but it vanishes just before he reaches it.
