Genesis, Instinct

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.