Overview: OCC goes green by attempting to build the first clean-burning natural gas powered bike for the Chesapeake Energy Corporation. Their vision and ingenuity will be put to the test...can a bike be built which is energy efficient and still perform as a chopper? Meanwhile, at Paul Jr. Designs, Paul Jr. gets his first client in Coleman which wants him to put a new spin on a current product. Elsewhere at OCC, Mikey begins questioning his relationship with his father and role at the shop.