It is graduation day in the town of Silverton and the sons of the vice-principal Gary, Donnie and Trey, are responsible for filming the ceremony. However, Donnie has a crush on his mate Kaitlyn (Alycia Debnam Carey) and he has the chance to go with her to an abandoned chemical facility to help her in an assignment, leaving his brother alone. Meanwhile the storm tracker Pete is advised by his meteorologist Allison to head to Silverton where a tornado will probably appear. Pete needs to prepare footage of tornado for the producer and he drives his truck Titus with the cameraman Jacob followed by the equipped van with Allison, the driver Daryl and Lucas to film the tornado. However, several erratic tornadoes arrive in the town and seem that there is not no safe shelter to protect the inhabitants of Silverton.—Claudio Carvalho, Rio de Janeiro, Brazil