Sans worked a few jobs inside of Monster City, doing his best to provide an income to his family and their kind. Another day, another attack, another break-in, another police report, another problem. More than that, more than all those problems he was having one big one. One massive complication. His hotdogs. Someone was stealing his hotdogs. He planned to find out who

It was just a simple task of just dive in, look about, take a few whacks, then pull out and that would've been that. The government official said it'd be simple, the foreign government official asking for help said it'd be simple. The fort full of military that was supplying the resources needed said it'd be simple. Why else wouldn't it have been simple?