Peter invites Heidi into his tree house, where the two of them swear to eternal friendship.

Maria, Nina, and Matteo are horrified to find that someone has completely destroyed the surprise they put together for Antonio. Luckily, the Peppercorns are on the case.

Now that Ruby has accessed everyone’s phones, and thus has the power to destroy relationships and friendships, she must grapple with her own guilty conscience.

Emma discovers that hydrangeas are being cut off all over the neighborhood. Meanwhile, Jackie is heartbroken over being rejected by Nina’s dad. But that’s not her biggest problem right now…

What was supposed to be a fun afternoon in the cave with Josef and Pieple turns into a total nightmare when Heidi gets lost in the fog. Fortunately, Grandfather arrives just in time.

Nina's grandpa arrives in good spirits. He’s even brought along Nina's cousin Marcello, who Max still thinks is Nina's ex-boyfriend! Meanwhile, Emma watches with interest as Jackie gets into a heated argument on the phone with her irresponsible brother, Marvin.

Berlin, 1933: Anna is only nine years old when her life changes completely. To escape the Nazis, her father has to flee to Zürich; his family follows him a short time later. Anna leaves everything behind, including her beloved pink rabbit, and must face a new life full of challenges in a foreign country. Based on the semi-autobiographical novel by Judith Kerr.

In the bathroom of Jackie’s houseboat, Emma discovers the cut-off hydrangeas and calls Henri. Just as Henri starts telling her about all the dangers of smoking these flowers, Tarik unexpectedly shows up…

Karl discovers that a fossil has been taken from his collection. He accuses Heidi and Peter—but the culprit turns out to be someone else.

When packing for her family’s escape, Anna finds herself forced to make a heart-wrenching decision: to leave one of her favorite stuffed animals, her pink rabbit, behind. It’s also difficult to say goodbye to the house, and especially to the housekeeper, Heimpi.

Just as Tarik realizes that Emma is hiding in the houseboat bathroom with the stolen hydrangeas, Max arrives and threatens to call the cops. Later, Max angrily approaches Marcello about Nina, but they don't share a common language, which results in a big misunderstanding.

The day of the award ceremony has arrived, and everyone is in a great mood — except for Max, who’s furious with Nina and refuses to speak with her. Meanwhile, rumors are flying among the church congregation about the nature of Hannes and Jan’s relationship.

Heidi and her grandfather ride a sled through the valley — it’s her first time, and she loves it! Peter, meanwhile, is having a rough time in class, and the teacher isn’t going easy on any of the students today.

Leipzig, 1989: Twelve-year-old Fritzi lovingly looks after a little dog belonging to her best friend, Sophie, who has apparently gone on summer vacation with her family in Hungary. But when Sophie doesn’t return in the fall, it becomes clear that her family actually fled to West Germany. Fritzi courageously sets out to return Sputnik to Sophie… and gets caught up in a movement that’s changing the future of the country.

While cleaning out the headquarters to find items to bring to the flea market, Henri digs up an old Geiger counter. Meanwhile, Hannes’s ex-girlfriend Debbie shows up and starts behaving inappropriately, and Nina doesn’t understand why Max still won’t talk to her.