As feared, the 11th Pilgrimage actually amounts to an overpowering invasion by Lucas, a private 'Phoenix' army and Mira's band. Jim is captured, but can play confused by a concussion. Malcolm is blackmailed to collaborate, but procrastinates. Only when Josh, who resumed his waiter job to spy on Lucas, gets abused, Jim breaks his cover. Lucas now also discovers how he communicates with Taylor, who is on the run in the forest. The Phoenix militia commander prepares to wipe clear the dinosaurs-infested valley with mega-bombs.
The Shannon family joins the Tenth Pilgrimage of settlers to Terra Nova, the first colony established in this beautiful yet foreboding land. Jim Shannon, a devoted father with a checkered past, guides his family through this new world of limitless beauty, mystery and terror. Upon the Shannons' arrival, they are introduced to Cmdr. Nathaniel Taylor, the charismatic and heroic first pioneer and leader of the settlement. Taylor warns the travelers that while Terra Nova is a place of new opportunities and fresh beginnings, all is not as idyllic as it initially appears. Along with blue skies, towering waterfalls and lush vegetation, the surrounding terrain is teeming with danger - and not just of the man-eating dinosaur variety. There is also a splinter colony of renegades led by the battle-hardened Mira, who is vehemently opposed to Taylor and his leadership. This is a 2 part episode.
Jim and Taylor find themselves trying to save the colony from attacking Pterosaurs. Elisabeth discovers an ex-boyfriend is also living in Terra Nova and may have been responsible for her being recruited. Skye tries to make Josh feel at home and Reynolds gets protective of Maddy. This is episode 2 according to the Fox website.
When Elisabeth, Jim, Malcolm and Taylor investigate radio silence at a nearby scientific outpost, they discover an outbreak of a mysterious virus causing memory loss, paranoia and eventually death. The group must work together to find a cure before they lose their sanity and all of Terra Nova is infected.
A crashing meteor wipes out all technology and wreaks havoc on the colony. Meanwhile, Maddy and Reynolds are stuck out in the wilderness, Elisabeth and Skye work together to save a life and Taylor tries to prevent Mira and the "Sixers" from invading Terra Nova. Also, a mystery man makes his presence known.
The 11th Pilgrimage arrives in Terra Nova and the mysterious Phoenix Group in 2149 makes its move to pillage the past with the help of Lucas and Mira. Meanwhile, Jim and Taylor team up in a last stand against the Phoenix Group, a colonist makes the ultimate sacrifice and a decision is made that will change life in Terra Nova forever.