A teenager named Billy Batson and his adult companion, Mentor, travel around in an RV helping people in need.  Billy has been given the power to turn into Captain Marvel by the elders, Solomon, Herculese, Atlas, Zeus, Achillese and Mercury.  Every episode the elders would contact Billy and give him a cryptic warning about something he will encounter.  Billy would ultimately realize the meaning of the elder's advice and transform into Captain Marvel to help someone in need. Oh Elders, fleet and strong  and wise, appear before my seeking eyes.