"For the life of him, William "Scoob" Lamar can't seem to stay out of trouble--and now the run-ins at school have led to lockdown at home. So when G'ma, Scoob's favorite person on Earth, asks him to go on an impromptu road trip, he's in the RV faster than he can say FREEDOM. With G'ma's old maps and a strange pamphlet called the 'Travelers' Green Book' at their side, the pair takes off on a journey down G'ma's memory lane. But adventure quickly turns...

As they near the end of their wacky road trip, Coke and Pepsi McDonald realize their adventures are far from over, as they are abducted by aliens, caged with a venomous snake, fall into a volcano, and are pushed into a turbine--and, strangest of all, their parents might actually believe them.

"Parker twins Finn and Molly help new friend Carlos follow a treasure map left to him by his grandfather"-- Provided by publisher. Includes authors' note about the Alamo and Texas state facts.