Fill-A-Need, a start-up organization promoting autism awareness, wants OCC to build them a chopper. When Rick drops a bomb that he will be out of town for most of the build, Evan must rise to the challenge of both managing the project and fabricating the bike without Rick's help. Things go smoothly until Evan decides that he wants to change the design of the exhaust. Senior forbids him to, but Evan really wants to prove to Senior that the exhaust will take the bike to the next level.