Moritz struggles with the secrets he's been keeping from Lisa; Dan must think quickly under pressure; Lenny and Kira grow closer.

Inspired by a career test, Moritz embraces his role as CEO, but loses his cool when Lenny wants Kira to join the team.

After a dangerous stand-off, the guys look for a way to convert their bitcoins to cash; Moritz's many lies begin to catch up with him.

Moritz confides in Lisa, who tells him to clean up his act; an attractive offer from Goodtimes tests his loyalty to Lenny and Dan.

The rivalry between the guys increases; at a party in Rotterdam, Moritz receives a rude awakening and attempts to warn his friends.

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

Lenny helps Mortiz with the site on the condition that they keep their collaboration a secret; meanwhile, Jens frets about his son's future.

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

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

To celebrate the end of the 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.