'Terra Nova' (Mon., 8PM ET on FOX) settled into adventure-series mode this week with an "adventure of the week" kind of story. With the encampment under bizarre attack by hordes of pterosaurs, the leaders had to find out why this was happening, and how to stop it.

It turns out, Terra Nova was built on a breeding ground for the migratory creatures, which meant there were millions incoming. Through some fancy science they were able to relocate the dinosaurs to a new breeding ground in the nick of time, and that was basically it.

There was no further development on the Sixers, nor any revelations about what secrets Taylor may be holding. They did establish some nice tension for the Shannon family to deal with when it was discovered that Dr. Wallace recruited Elisabeth in the hopes she would show up without her husband.

As a reminder that even after all the time Taylor has been there, the past has plenty of dangers and new tricks up its sleeve, this was solid entertainment. As one piece of a thirteen-episode season, one has to wonder how much meat they're going to layer onto this story if they feel they've got time for such a light installment.