In Longjumeau, 1995, Filip, Adel, and Frank lead quiet lives. Filip dreams of entering the most handsome man in France TV contest, not an easy feat when you do not know anyone in that world. Backstage, the three friends meet Salomé, a director.

Salomé has less than a month to ensure that Filip, Frank, and Adel are up to the mark, otherwise she will lose everything. The boys have given up everything to commit to the project, but training sessions are painfully dragging on.

Filip, Adel, and Frank fail to impress Yann, Salomé's boss, and the project is now at a standstill. The boys are out of options and Salomé's firing seems inevitable. Salomé makes one last gamble, producing a music video to convince the label.

Their single, `Partir un jour', is a hit and 2Be3 become a true social phenomenon. They face sudden fame, media pressure, and the hectic pace of recording their first album. The friendship between the three young men is put to the test.

Crowned with a platinum record, 2Be3 announce a hundred-date Zénith tour. The marathon starts with a triumphant show in Paris, but the relentless pace begins to take its toll on the boys, and tensions rise as they face competition.

Between rehearsing for concerts and filming their sitcom, the band are busier than ever. Exhausted and abusing medication, Filip collapses. The dream of a final concert at Bercy falls apart.