S1, E4: Junior’s bathroom sink is broken and it’s time to go on an imagination destination adventure to learn how plumbers do their job. And what better place to learn about plumbing problems than at Wild Willy’s Water Park, the most exciting, wet and wild, twisty-turny, slipin' and slidden’, water park in the wild, wild west! But after the kids discover that the water park is having plumbing issues of its own, they decide to help their new Plumber friend find the mysterious clog that’s keeping the water from flowing. This is one episode of Junior On The Job that you don’t want to miss.