In this episode of Barney & Friends, the gang learns about exercise an d proper nutrition in order to grow big and strong. First, the kids ar e playing outside and Barney teaches them that movement, playing games and running for example, are important features in everyday life. Eve ryone needs to exercise. Even Baby Bop and BJ come by to teach the kid s about different games to play in order to get exercise. All of a sud den, it starts to rain so the gang heads into the caboose. Here, they learn that you can exercise inside almost as well as outside. Also whi le inside, they learn about healthy snacks.