(Really, Mr. Herzog): Waldemar is accused of tax evasion and fraud. He asks Franz to help him prove his innocence and find the real culprit. They uncover a conspiracy involving some of Waldemar's business partners and enemies.
(A Very Honorable Offer): Franz is offered an award for being a rent-a-grandpa. He is invited to a gala event where he meets some famous and influential people, and also the attention of a jealous rival trying to sabotage his reputation.
( Of People and Fish): Franz and Waldemar go on a fishing trip. They encounter some problems with their boat, their equipment, their catch and some hostile fishermen who claim that they are trespassing on their territory.
(...and He Sings So Beautifully!): Franz is hired by a young singer who wants him to be his manager and mentor. He helps him, but he has to deal with the singer's arrogant attitude and his demanding girlfriend.
(When One Travels...): Franz and Waldemar decide to go on a vacation, traveling to various exotic locations and having some fun experiences. Along the way, they got lost, robbed, got sick, and got into trouble with the locals.
(The Birthday): Franz celebrates his birthday with Waldemar and his friends. He receives some nice gifts and some heartfelt messages. However, some unexpected guests and some unpleasant surprises threaten to ruin his party.