Otto says that he's finished with false identities and tells his friend Thomas that he doesn't want to place any new personal ads in the newspaper.

In the second part of the video, Galileo reveals five secrets about airplanes and answers a few questions you may have asked yourself whenever you have taken a flight.

Lotta and Oskar were just five and three years old when their grandfather suffered a heart attack at the playground. There were no adults in sight, but the little ones managed to get help.

In old-growth forests, trees can grow, live, age, and die naturally, and thereby contribute to the ecosystem rather than being harvested in the prime of their lives. That's why the WWF has nature reserves in Germany where the old-growth forests of tomorrow can develop.

Yara tells Pepe about her visit to the newspaper office. The two discuss reading newspapers: do they prefer analog or digital? The discussion gives Pepe a new business idea.

You check in, board, find your seat, and off you go! Everyone's familiar with the routine. But why do the crew always greet you as you board the plane? And what's the purpose of that tiny hole in the windows?

Yara is visiting the newspaper office to discuss the publication of the ad for her bike shop. The editor gives her a tour of the editorial department, not entirely without ulterior motives.

The local newspaper editor has offered to place an advertisement for the bike shop for free. Pepe is enthusiastic, but Yara worries the reporter might have other intentions.

Carl Benz was a brilliant inventor and visionary in the automotive industry. His patent for his "gas-powered vehicle" is widely regarded as the birth certificate of the automobile.

Yara's flea market seems to be a hit, and now a newspaper reporter has even come to interview her!

Peppa and her classmates go on a bus trip to the mountains, where they learn what echoes are.

Lisa and Selma are chatting about green energy at Das Marek when Yara shows up and tells them about the flea market she's organizing. This is the first time Yara has met Selma, though she knows that Nico has a big crush on her.

Paula and Alina are hanging out together this evening and have decided to watch a movie. Now they just need to pick something they'll both enjoy.

Lisa wants her class to try giving up plastic for a week. She quickly realizes that it's more challenging than she first thought, but luckily, some sweet treats come in cardboard packaging too.

Do you know about mini doughnuts? They are much smaller than regular doughnuts, but just as delicious. Alina shows us her recipe for doughnuts with chocolate and lemon icing.