Dr. Delambre is in a scramble to salvage his life's work.

Darwin must face his bigoted father to help his ailing mother.

Russ desperately wants to keep his dying bar alive and his family's name preserved.

Calista needs money to build a new life, even if it means enmeshing herself in a dark secret.

Their stories collide in the forgotten town of Thebes, Nebraska, deep in the Sandhills, where a prehistoric threat rears its hideous head.