S1, E1: Woo! Woo! All aboard the PlayKids express! It’s time to have some fun with Junior and learn all about trains. After Junior and friends build their own cardboard train at home and discover that driving it is no walk in the park, they go on a fantastic imagination adventure to learn how steam trains move and who’s job it is to drive them. But to their surprise, they find that their train at home isn’t the only one stuck in its tracks. Will Junior, Kate, Mimi, and Theo be able to finish the job and figure out how to get the train moving again? Put on your train engineer hats and watch this episode of Junior On The Job to find out!