After learning that SuperValueMart has brought in a new manager to drive Greens & Grains out of business, a misplaced Thanksgiving turkey order leads to Leslie's obsession with a new game that threatens the store's future.
When his efforts to host an official Star Trek convention at the store are shot down, Leslie's backup plan backfires, stranding him and Ingrid in a walk-in refrigerator with Star Trek: Enterprise star Jolene Blalock.
With Richard's encouragement, Yolanda's management, and the backing of competitor SuperValueMart, Leslie sets out to become a show business star with a CD of his whistling.
Leslie learns some harsh lessons about the power of big business when he tries going up against the Dairy Consortium and its partner in crime, SuperValueMart.
After learning that Greens & Grains is built on Shawnee tribal land, Leslie's attempts to reclaim his native roots prompt Mercy to step up her efforts to drive the store out of business once and for all.
During a celebration of Greens & Grains' 150th birthday, Leslie suspects that Ingrid is being pursued by the handsome leader of a polygamist cult - and sets out to stop him.