Leo, Iggy and Alex are back in school after their failure with the band up4noise. Sam has been offered a contract as a solo artist and is going to a meeting at X-Flash Music. But what happens when the record label manager visits Sam?

Nea will celebrate Sam's success with his new solo career, but it does not go at all as she has imagined. Iggy, Leo and Alex are invited to a pool party by the new cool DJ Nikki, who has just started at their school.

It's a nightmare for Sam to return to school, after the failure of X-Flash Music. An unknown number calls Leo all day. The guys decide to run their own thing with the band on their own terms, but on the way to Marcel's pool party, everything changes.

When Leo learns that Nea has gone behind his back, love hangs on a fragile thread. Iggy is successful when he raps at the pool party and Marcel invites Nea to julmust and maybe something more…. This is not appreciated by Leo!

Leo gets an irresistible offer, but what is really most important? Friends or a fat music career? And what's going on with Grandpa?

Leo makes a life-changing decision and sacrifices both love and friendship. Nikki gets a place in the band, but does she really deserve it?

Leo records a new hit song and as a reward he gets a forced date. What if Nea finds out!

Leo and Mirabell succeed on the red carpet. Iggy and Nikki are offered pizza in Leo's luxurious lodge, but Leo is forced to leave his friends when he goes on a hard dance session. What happens when Nikki and Iggy are left alone?

Someone has stolen Leo's computer and when Leo finds out who he gets the shock of his life. Sam, Iggy and Nikki have started working on a new hit song, but their creation is suddenly interrupted by a furious Leo. Nea's missing Leo is unbearable and it does not get any better that they see him perform his fattest concert ever, which is live-streamed all over the world.

Leo was a total success with his concert. There is a lot of praise from fans. The police have picked up Nikki. Are they also looking for Iggy? Sam tells Marcel that Nea has herpes all over her face. But that does not stop Marcel!

Leo is forced to make tacky commercials with Mirabell. Sam, Iggy and Alex did not think up4noise had any fans anymore, but they were really wrong!

Leo is in the worst TV interview of his life and is being chased by haters. Iggy learns a secret about Nikki. And maybe Nea likes Marcel anyway?

During a live radio interview, Leo lightens his heart, which is not appreciated by the X-Flash management! Nea hangs out with Marcel, but the coziness ends in tears. Iggy, Sam and Alex change their minds about Leo. But when does Grandpa come home?

The saddest day in the boys' lives, but now they at least have each other again. Thanks to grandpa, they can now become a real band again. There is only one missing to make it possible…

Nea helps the guys with styling before their gig at a home party. Whose party are they going to play at? When Marcel sees Leo, it goes to hell. Ida does her best to comfort.

up4noise records a music video and prepares for its Stockholm gig. They are attacked by assertive journalists, but Nea saves them from the situation. Is there still love between Leo and Nea? Chris has finally listened to Leo's own song and is blown away. She wants him to come to New York. Leo is once again forced to choose between his friends and his solo career.