“Crater” is the coming-of-age adventure about Caleb Channing, who was raised on a lunar mining colony and is about to be permanently relocated to an idyllic faraway planet following the death of his father. But before leaving, to fulfill his dad’s last wish, he and his three best friends, Dylan, Borney and Marcus, and a new arrival from Earth, Addison, hijack a rover for one final adventure on a journey to explore a mysterious crater.