Fresh (or not so fresh) from swimming through the sewers of science, our charming host--Dwayne, the rat--hurtles into history for more Interpipe Adventures. What's the Interpipe? We're glad you asked! Copying how computers have been connected to form the Internet, four mad-scientist-plumbers (Plumb Bob, Phyllis Tanks, P. Liddy, and Portia Potty) linked the world's sewer lines together to create the Interpipe. Next, the Four P's created a waterproof device called the iSwirl that can be used to travel back in time with a mere flush of the toilet! Finally, Uncle John found a world-famous puzzle maker to chronicle every Interpipe adventure, and the rest is iFlush history!