After four years behind bars, Moritz is excited to start a legitimate business venture — until he learns that Lenny and Dan beat him to it.

Lenny hopes to reconnect with Moritz, who has other things on his mind. Lisa looks into a recent string of murders with a peculiar connection.

Lenny helps Moritz with the site on one condition: that they keep their collaboration a secret. Meanwhile, Jens frets about his son's future.

Lisa's investigation hits a nerve. Given a week to achieve the impossible, Moritz sees only one option: a company hackathon.

Trapped in the desert with a gun to his head, Moritz must think fast to save his life — and those of his friends.

Moritz hires a high-priced business consultant. Kira and Dan come up with new ways to raise money for Lenny's medical treatment.

When his girlfriend breaks up with him after spending the year abroad, Moritz schemes to win her back by snagging a stash of ecstasy.

Business is booming, and Buba wants a piece of the action -- but the product is getting bad reviews. Lisa thinks Dan has been ignoring her.

Moritz wrestles with the secrets he's been keeping from Lisa. Dan thinks fast under pressure, and Lenny and Kira get closer.

Under pressure from Goodtimes, Moritz races to rebuild MyDrugs during a school trip to the woods, but code bugs — and allergies — derail his progress.

Moritz has a plan for BonusLife, but he'll need to raise money first. Ersan suggests a meeting with his boss, who immediately puts them on the spot.

Fearful of having endangered Lisa, Moritz resorts to drastic measures. Lenny learns the truth about Dan's mismanagement of BonusLife.

Lisa lands in trouble with her parents. Moritz reprograms MyTems into an online drug store and tries to make amends to Lenny.

Moritz's reputation takes a hit. After discovering a troubling email, Lenny confides in a new friend. Jens enlists Moritz to crack a password.

The guys take a road trip to Rotterdam. Marie asks Lisa to keep an eye on her brother. When Moritz crosses a line, Dan does damage control.

Lenny sets up the clear web shop while Moritz secretly meets a new supplier in Rotterdam. But the friends don't see eye to eye about their future.

Inspired by the results of a career test, Moritz embraces his role as CEO — but loses his cool when Lenny suggests Kira join the team.

Following a dangerous standoff, the guys search for a way to convert their bitcoins into cash, and Moritz's many lies start to catch up with him.

Moritz confides in Lisa, who warns him to clean up his act. Later, a tempting offer from Goodtimes tests his loyalty to Lenny and Dan.

After making a million euros, the guys decide they want out of MyDrugs, so a nervous Moritz goes to Rotterdam to break the news to their suppliers.

To celebrate the end of their Abitur exams, the students throw a costume party at school — and things get a little out of control.

A high-stakes situation leaves the friends scrambling to figure out their next move.

Things begin to unravel the day after the party, and Moritz is forced to turn to his rival for help. Lisa has a change of heart.

The guys' rivalry heats up. At a party in Rotterdam, Moritz gets a rude awakening and tries to warn his friends.