Chef Robert Irvine's in for a 2-in-1 challenge when he's tasked with fixing the Zest Bistro, located inside the Lemon Tree Grocer in Downers Grove, Ill. Best friends Shaun and Tim opened their gourmet grocery store with a full-service bistro almost five years ago, and now both sides of the business are failing and the debts are climbing high. In just two days, Robert will need to reorganize the grocery store, renovate the bistro and ease the growing tension between the owners.