Katja Baumann helps out at Sanne Bredemeyer's sailing school. Her son had untied the boats unnoticed and with all the excitement his heavily pregnant mother almost miscarried. Katja now not only takes care of the business, but also of the family, as Sanne has to lie down a lot and any further agitation should be avoided. When Katja tries to find out the reasons for Finn's act, she notices how much the boy misses his stepfather Matthias.
