Buddy, Tiny, Shiny and Don are excited that Keira Chirostenotes gets to babysit them for the night while Mr. and Mrs. Pteranodon go out for a dinner on the Dinosaur Night Train. Keira shows the kids how a dead log's decomposition provides food and shelter for many living creatures. Meanwhile, Mr. and Mrs. Pteranodon are gleeful as they enjoy their date, exploring the Dinosaur Train's other compartments.