When Rev and Avery set out to conquer a legendary endurance course, the course's challenges put their truck power to the test. But as they near the end, a call for help takes them off course-and straight into a rescue mission to save their heroes.
When Rev sees Lori working the quarry in secret, Lori asks Rev to keep it secret-she worries she isn't good enough, and dreams of working with the big quarry trucks one day. But when quarry workers need help, Rev has to convince Lori to save the day.