Stand By Me Spinoff - Copycat Movies

In the glorious days of renting random VHS tapes at the local store, we got one that was kind of a ripoff of Stand By Me. Dont remember the details but it was a group of kids hiking around on some adventure.

What I do remember is that out of nowhere, with little setup, suddenly they were running from a train on a bridge. Then back to the story. It was literally like they inserted the scene after the fact.

Anybody else see this and have any idea what it was called?