Chris Wedge "Ice Age 4" still tells the adventure stories of those special animal "families" living in the Ice Age. The invincible and miserable little squirrel Scrat (voiced by Chris Wedge) who always chases pine cones has caused a bigger incident this time. He accidentally broke the continental plate into pieces, causing the mammoth Manny (voiced by Ray Romano), the sloth Sid (voiced by John Leguizamo) and the saber-toothed tiger Diego (voiced by Denis Leary) to be separated from their families and partners. After the violent movement and splitting and drifting of the plate, they can only use a piece of drifting ice as a temporary ship to embark on an amazing sea adventure. At sea, they will encounter dangerous natural environments and pirates. Going home to reunite with their families is their ultimate wish. Can they finally go home smoothly?