“GSI Commerce” – Michael Rubin, CEO of the billion dollar e-commerce giant GSI, which provides customer service and product shipments for online orders to numerous top U.S. retailers, goes undercover in his own company where he discovers that rushing through a task can result in injury to others, and that his packing and shipping skills are not up to company standards, on UNDERCOVER BOSS, Sunday, March 21 (9:00-10:00 PM, ET/PT) on the CBS Television Network.