An evolved dinosaur escapes an underground cave and encounters 15-year-old Lauren Slayton.
Lauren and Courtney get lost while searching for a lost locket and are chased by the Diggers; a mysterious doctor arrives and starts asking suspicious questions.
Eno returns Lauren's locket but then disappears into the woods; the Diggers threaten nearby campers; Nelson and Danielle find strange footprints.
Eno battles a grizzly bear; Courtney and Chris encounter a skunk.
Eno is trapped by poachers; Lauren believes a medicine man holds the secret to her father's disappearance.
Lauren learns that her dad knew about intelligent dinosaurs like Eno and the Diggers.
Eno tries to tell Lauren he misses his parents, but she is not able to understand him; Ten Bears speaks to the Diggers in a language they understand.
Eno discovers lightning and searches for tools at Lauren's house so he can recreate it.
There's tension between the counselors on a camping trip that does not go well; Dr. Aikens hunts for Eno.
The Diggers capture Lauren and take her into the coal mines. Her friends attempt a rescue, but then a shaft collapses.
Courtney covers for Kit and Lauren when they sneak off to search for Eno.
Lauren tells her mother about Eno to prevent him from being captured by Dr. Aikens.
Eno catches a cold, but without any human antibodies it could be deadly, so Lauren and Kit track him to the Badlands and discover Ten Bears is going to help them find a cure; Courtney breaks up a food fight back at camp.
Dr. Aikens teams with poachers to track down Eno, so Lauren and Kit hide him and call Chris and Courtney for help, but they're waylaid when the Diggers attack their jeep.
Dr. Aikens wants to use Eno as bait to kill dinosaurs as they emerge from their caves in the Badlands; Nelson and Danielle tip off Lauren, who frees Eno from the trap.