Every day this week we’re following StartupBus, a hackathon on wheels, where a bunch of strangers come together to launch companies in one week, all while on a bus. If you haven’t heard Monday’s episode, start there.

It’s Tuesday, day two on StartupBus. Now that teams have settled on ideas for their companies, it’s time to start building. But when tension runs high, one company considers kicking one of their own members off the team.