It’s Sunday, and Felix and Franzi’s friends from Germany are finally arriving. All kinds of animals from the Berlin Zoo are here—it’s a great reason to celebrate, isn’t it?

Felix and Franzi are looking at photos from Germany, and of their friends in Berlin, when Felix gets terribly homesick. But then he gets a postcard in the mail...

Emma, Henri, and Max want Nina to join the Peppercorns, but she's very reluctant to engage with them. Emma picks Nina as her partner for a photo project, hoping that she’ll find out more about her. But then something unexpected happens…

Franzi the Duck and Felix the Frog move from their home in the Berlin Zoo all the way to the UK in this series, which is designed for beginners.

If the drug dealer Dragan finds out that the Peppercorns are on his trail, he’ll surely make trouble for them. Fortunately, Emma, Nina, and Max are able hatch a plan to get Dragan arrested before it's too late.

Comedian Luke Mockridge interviews children about their views on adulthood – and the things that adults get to do that kids don't.

Having broken into Dragan's place, Emma and Nina learn that he is using their classmates to push drugs at their school and others. Suddenly, the dealers come back to their hideout – and the girls are trapped!

After Anna is taken to the hospital, Nina goes to find Emma, only to learn that Emma's in Sankt Pauli trying to trace the origins of the drugs.

Emma is determined to help Max, who is being blackmailed by a drug dealer. Nina continues to claim that she doesn't need any friends and doesn't want to join the Peppercorns. Meanwhile, a student has a bad reaction to the happy pills...

Max confronts Dragan about the money Dragan is demanding from Max's grandmother... then finds himself in a bad situation.

In Part 2 of “The Lost Key,” Kasper and his friend Seppel search for the king’s missing key together. They finally track down the thief — but will they be able to outsmart it?

After the Peppercorns wrap up the case of the stolen wallets, Max sets off on his bike to his grandmother's food truck – and has an unfortunate encounter along the way.

Kasperle, or Kasper, is a traditional puppet character from the German-speaking world, and “Kasperletheater” (Kasper shows) are performed in a manner similar to that of the UK’s “Punch and Judy.” Here, the King has lost the key to his beloved treasury—and, with the King’s promise of a reward, Kasper is eager to help him find it.

Henri and Emma finally chase down the thief – and prove that Nina didn't steal any of the wallets.

In Part 2 of this episode, Oliver discusses the problems that schools face as they begin to reopen in Germany — and also looks at the implications for summer vacation plans.

After a second wallet is stolen, everyone becomes even more suspicious of Nina. Max is still convinced that she didn't steal anything, and while he and Emma are in math class, Henri stands watch outside the gym.

Oliver Welke, Germany's answer to John Oliver or Trevor Noah, looks at ways in which some of the regulations put into place during the COVID-19 crisis are now being relaxed. Masks are still recommended, though Welke wonders to what extent people are using them effectively.

When it becomes clear that his nephew Henri can't stay on his boat, Jan brings him to Emma's father, Hannes. Emma, however, is not happy to find that a guest has taken over her space in the attic – which also serves as the Peppercorn headquarters.

As part of his "market research," Luke asks the kids to help him come up with a superhero film based on their lives in kindergarten – with some hilarious results.

Nina's first day at school really isn't going so well, but she rejects Emma's help and doesn't tell her father what happened. Meanwhile, Emma's dad settles into their new apartment.

The "heute-show" is Germany's answer to "The Daily Show" in the US. In this episode, host Oliver Welke and "expert" Tina Hausten (played by comedian Martina Hill) look at ways in which Germany isn't exactly a role model when it comes to climate policy.

Comedian Luke Mockridge playfully interviews a few preschoolers on his show "Luke! Die Woche und ich."

When a wallet goes missing in the girls' locker room, the girls immediately blame Nina, who is new at the school. Luckily, Emma and Max are already on the case.

In the first episode of Season 9 of Die Pfefferkörner, Emma is the only one of the pre-teen detectives left at school. Will she be able to keep the group going?