Phineas and Ferb are wondering what to do today, other than give Perry a bath. From behind the fence comes the roar of race cars racing, and their dilemma is solved. They head to the garage to begin the upgrades to their mom's car. Candace walks by; engrossed in the need to take a new picture for her blog, for the current picture was already a whole week old. She poses and snaps the new picture; it appears exactly the same as the old one. It suddenly dawns on her that something is going on in the garage behind her so she zips over to investigate. Phineas and Ferb are part-way through converting the car for racing, but since they don't know how to drive (not to mention aren't old enough to), Ferb has modified it so that it can be run by remote control. Candace runs off to tell Mom, but discovers she can't find her. She comes back and asks Phineas where their mom is and he says she is off playing bridge at Vivian Garcia-Shapiro's house.
On the hottest day of the summer, Phineas and Ferb are sitting in the shade under the tree, listening to the radio. Perry is lying down nearby. The DJ advises everyone to take it easy by sitting under a shady tree with "an aquatic mammal of some sort." Even though they’ve met the recommendations, Phineas doesn’t want a little heat stopping them from having the "best day ever" because this would mean that "the morning DJs win." Mom announces that she is heading to the spa while Dad is cleaning out the basement, and heads off. Candace states that this means she’s in charge by default. She surveys what Phineas and Ferb doing, (which she thinks is making a beach in the sandbox but it’s bigger) then tells them to carry on and heads back inside. Phineas realizes that they need more sand and then notices that Perry has disappeared.