Bibi and Tina can hardly believe it: Freddy has fallen in love with Amélie, one of the guests at Martin's Farm. In order to be around her, he even signs up for riding lessons. But Amélie only has eyes for the horses, and all of Freddy's efforts are in vain. His only chance is to ask Bibi and Tina for help.

While out riding, Bibi, Tina, and Alex come across an injured falcon. They bring it to Mr. Greenfinch, the forester. It turns out that the falcon is tame and is quite happy staying with the forester. The children quickly grow fond of the animal. But then a falconer appears and demands his bird back.

Mrs. Martin is using her grandmother's old recipe book to bake gingerbread cookies shaped like horses. Bibi and Tina take them to the Falkenstein Christmas Market, where they sell fast. But then someone breaks into the stall at night and steals all the merchandise. Bibi and Tina think they might know who the culprit is.

Bibi, Tina, and Alex have become enthusiastic members of Falkenstein's volunteer youth fire brigade. The forester, Mr. Greenfinch, teaches them how to put out fires and conduct search and rescue. Unfortunately Count Falko has other plans for his son and spoils the whole thing for everyone. What was fun suddenly gets serious!

Bibi and Tina buy a birthday present for Mrs. Martin at Junkshop Jack's: a necklace with a horseshoe pendant. But when she wears it, Count Falko notices that it resembles his grandmother's heirloom. And indeed, this very heirloom is missing from the castle! Could Junkshop Jack be a thief? Bibi and Tina don't believe it!

Bibi and Tina are given the chance to do an internship with Falkenstein's vet, Dr. Robert Squirrel. Things go well at first, but then the girls begin to slack off and the vet sends them back home. But when he finds himself in a tight spot, the girls want to prove that they can be helpful after all. Will they be able to?

Bibi, Tina, and Alex are looking forward to the Falkenstein endurance race, and plan to enter as a team. Then Elisabeth, whose mother is a friend of the Count's, pays them a surprise visit. She wants to compete in the race too, but she can't ride alone. She decides to win Alexander for herself instead. Will she succeed?

Bibi, Tina, and Alex are in Hungary visiting Szendrö Manor to celebrate the birthday of Mikosh's horse Baboshko, but they're unable to get into a festive mood. It's winter, and there's a wolf roaming about looking for food. When the locals get ready to hunt down the poor creature, the friends are horrified, and they try to help him.

Bibi and Tina want to enter the big Falkenstein team jumping contest, but with the Hatmaker brothers participating, they've got some tough competition. Still, the girls think they might have a chance if they train really hard, and luckily Tina's brother Roger agrees to help. Everything's going great, until suddenly Roger goes missing!

Bibi and Tina travel to England with Alexander and his father Count Falkenstein to visit the Lady Bedlam's stud farm. They're invited to the McIntosh Junior Gallop race, in which a team from the farm is supposed to be competing. But they don't show up, and suddenly Bibi and Tina are at the starting line with the local boy Tom!

Bibi and Tina win a spa weekend at a luxury hotel for Mrs. Martin. Tina's mother is hesitant to accept, but she decides she really could use some time off. Bibi, Tina, and Roger can take care of Martin's Farm while she's away.

Martin's Farm is expecting two new kids for the summer break: Mark, who's quite the daredevil, and his rather shy brother Toby. Bibi and Tina are supposed to take care of the boys, but it turns out to be more exhausting than herding cats! And then Mark gets a really foolish idea and suddenly ends up in a trap!