The plot of "Ice Age: Dawn of the Dinosaurs" tells that after Manny the mammoth (voiced by Ray Romano), Diego the saber-toothed tiger (voiced by Denis Leary), and Sid the ground sloth (voiced by John Leguizamo), this trio of misfits who have been through thick and thin, experienced the crises of two glacial melts and collapses, they can finally take a break.