While Scrat inadvertently causes the break up of Pangaea, Manny and Ellie are forced to deal with the trials and tribulations of their teenage daughter Peaches, who has trouble fitting in with her peers. Ellie tries to support her daughter, but Manny becomes exceedingly over-protective. Peaches' friend Louis, a molehog, tries to warn her as she tries to approach a mammoth named Ethan on whom she has a crush. Meanwhile, Sid's family returns,...
