עונה 1・Rip and Beth Dutton gamble everything on building a new life in Texas.

Science teacher Ryland Grace wakes up on a spaceship with no recollection of who he is or how he got there. As his memory returns, he begins to uncover his mission: solve the riddle of the mysterious substance causing the sun to die out. He must call on his scientific knowledge to save everything on Earth from extinction... but an unexpected friendship means he may not have to do it alone.