Duff and the rest are challenged with creating a roller coaster cake; the bakery staff looks back on past episodes.

An Egyptian pharaoh cake proves to be difficult when they forget one important ingredient and try to move it to its destination.

Duff and his staff are invited by Tina Fey to make a cake to star in 30 Rock for their season finale.

Tommy envisions how to make a KITT car; Duff and Geof get a last minute birthday cake order.

One of the biggest architectural challenges to date; Neuschwanstein Castle in Bavaria.

Duff delivers a cake to the Boston Symphony Orchestra in a tuxedo; runs into a Boston legend and throws out the first pitch in one of the Red Sox' season openers.

Chef Duff and the decorators hit the high seas to create a sailing cake.

The first ever rocket cake by Chef Duff; rocket lessons from the Blue Angels.

Mary Alice gets a tour of Geof's hometown when they deliver a cake for "Relay for Life"'; Duff takes a Grammy inspired cake to New York's famous singing public school.

85th anniversary cake for the Grand Ole Opry with a real mic inside; the cake is a problem after it begins sagging and the mic stops working.

Chef Duff heads to Franklin Grove, IL to make a 175th year anniversary cake; difficulties arise when the bakery is the size of a large closest.

Duff makes a Nascar cake for one of the country's hottest racing teams at the Charlotte Speedway.

A cake for Shakespeare's Globe Theatre in London by Charm City Cakes.