Rivals face off! Four solid competitors from rival cities enthusiastically jump into the first round. But will they be able to settle on a firm idea of what to do with firm tofu and recover from some absentminded mistakes? Then one chef shows incredible speed moving around the kitchen, and a sugary surprise in the entrée basket poses a creative challenge. And once the finalists open up the dessert baskets, they make it their mission to make delicious mission fig dishes and to make the judges decision very difficult.

Peking duck, a seemingly simple protein, and an unusual fruit are among the featured ingredients.

Conclusion. The final round of the All-Stars Tournament finds four celebrity chefs cooking with offal, a tangy fruit and trail mix in a quest to win $50,000 for their favorite charity.

Part 4 of 5. The "Chopped" judges compete for charity. Featured ingredients include smoked fish; strawberry powder; and a labor-intensive protein.

Part 3 of 5. Four acclaimed chefs compete for charity. They must use fresh pasta sheets in their appetizers; big fish and little crackers in their entrées; and a Chinese spice in their desserts.

Part 2 of 5. Four popular Food Network personalities compete for charity. They must used teething biscuits in their appetizers; a kid's breakfast favorite in their entrées; and jelly beans and baby fennel in their desserts.

Part 1 of 5. Fan favorites from "The Next Food Network Star" begin competing for charity. Mystery ingredients include pound cake; calf's liver; an unusually bitter vegetable; and a small game bird.

The chefs must use catfish and marshmallows in their appetizers; pork country-style ribs in their entrées; and a Latin ingredient in their desserts.

A chef faces a major setback while preparing her trout appetizer. Then another chef's behavior brings up safety concerns in the entrée round. And coquitos present a challenge when the contestants make their desserts.

Marrow bones and a frozen ingredient show up in the mystery basket.

The chefs must use mussels and waffles in their appetizers; a lean meat and a delicate flower in their entrées; and a nostalgic candy in their desserts.

The chefs must use goat brains in their appetizers. Later, they're faced with a stinky surprise.