Dora's 8-year-old cousin Diego hits the ground running in this collection of adventuresome episodes with a conservationist twist from the popular "Dora the Explorer" spinoff targeting preschool-age boys. First, Diego laces up his sneakers to help an athletically minded armadillo win the Rainforest Race. Then, he hops a train named Chucho to help his animal friend Tapir find a new home in the billowy Cloud Forest.