The story begins in the middle of the action, with bandits attacking a stagecoach. Frank comes to the rescue - and somethng almost as startling as marriage happens:

The Snap makes it through the adventure, but since they're taking the train home, Frank has it disassembled. The story, by the way, describes Frank like this:

"Rich and addicted to inventing peculiar conveyances."

That's why it's a new one every issue. He can't stop himself!