The fourth season of the German series "How to Sell Drugs Online (Fast)" was released on April 8, 2025, and is the final season of the show. The series follows the story of Moritz Zimmermann, a high school student who starts selling ecstasy online to win back his ex-girlfriend, which quickly escalates into a large-scale drug trafficking operation. In season 4, Moritz is released from prison after four years and tries to start a legal business with his friend Lenny. However, in his absence, Lenny and Dan have developed a successful supplement start-up called Bonus Life. Feeling betrayed and left behind, Moritz plans to take control of Bonus Life with the help of a prison friend and an anonymous investment scheme. Despite aiming to do things legally this time, Moritz soon finds himself entangled in criminal activities and dangerous situations involving a drug ring and police investigations. The season has six episodes and continues the dark humor and crime themes of the previous seasons while showing Moritz's struggles after prison and his attempts to regain his place in the business world and his social circle. If you are interested in watching the series or knowing the full storyline of season 4, it is available on Netflix as of April 2025.