While most couples are finally getting the hang of DIY, Lotty continues to fumble with construction jargon, which bodes ill. Meanwhile, construction supervisor Heiko walks around like a watchdog, and nothing escapes his notice, much to the irritation of Menno and Patrick, among others. The pressure is mounting rapidly: the underfloor heating needs to be installed, as the kitchens are already ready to be fitted. With the deadline approaching, nerves are starting to kick in. Schedules are shaky, frustrations are bubbling up, and a broken hob throws everything into disarray as well.