These Talented Twins Take a Dangerous Turn on the Road to Discovering Big Secrets! Thrills, spills, and cheating death are just part of an average day on a not-so-average summer vacation for these two smarty-pants siblings! Coke and Pepsi McDonald are still stuck on the wacky family road trip that began in Mission Unstoppable, and now a brand-new evil mastermind is trying to kill them! In between visits to tourist attractions, the siblings face countless dangers, from getting trapped in a giant vat of soft-serve ice cream to nearly being dunked in boiling oil. Will they survive this latest leg of their journey?