A grandfather and his grandson playing trains is the entire story, and it moves like nothing else because the show understands that watching someone you love be happy is enough. The score doesn't try to sweeten what's already there. It just holds the space where two people are present with each other, which is rarer on screen than any plot twist. By the end you're not thinking about narrative. You're thinking about the last time you sat with someone and did nothing that mattered except that they were there.

A boy and his grandfather share a favorite pastime: playing with trains together at home. The boy enjoys these sessions so much that he is willing to leave baseball practice early to get back to them. A single-episode music piece, it frames this small family bond as a gentle drama.