Three of Grocery Games' biggest winners are taking each other on to earn the right to battle an Iron Chef. First they must flip the ingredients in the camping classic, s'mores, into a high-end dinner. Then, the two survivors must make an elevated lunch using only one ingredient per aisle. The last GGG chef standing goes head-to-head against Iron Chef Alex Guarnaschelli in a battle featuring three secret ingredients! With $10,000 on the line, the question is: Whose cuisine will reign supreme?

Two GGG juggernauts, Alex Guarnaschelli and Rocco DiSpirito, return to compete with their teams of Flavortown regulars in Guy Fieri's most hard-hitting games. In each round, one chef from each team will face off in crazy, tailor-made games to win an advantage for their team in the following round. In the end, only one team will win and be crowned GGG's Supermarket Heavyweight champions.

Guy Fieri brings three GGG winners back to compete against each other for a chance to go up against GGG's most feared competitor and judge, Iron Chef Alex Guarnaschelli. First, Guy picks a letter at random that each ingredient in their first dish must start with. Then, the chefs are tasked with making an international classic without shopping in some key aisles. The lone chef left standing wins an automatic $10,000 and gets to face Iron Chef Guarnaschelli for another $10,000.