Rila's appearance was mere coincidence, but Bowser's retrieval of fresh dinosaur bones was as inexplicable as was the curious crater in Asa's backyard that seemed to have been made by a spaceship from the stars. Soon Asa himself tripped in time, led into prehistoric eras by an enigmatic cat-faced alien. In short order, the time trails in the quiet town of Willow Bend became the focus of global attention and government scrutiny.
Then time-travelling turned into big business and led to big trouble, when Asa and Rila uncovered an interstellar mystery from before recorded time!