It's crunch time for the athletes as they compete under a cloud of doping suspicion, which intensifies doubts around the true intentions of Olympo.

Roque's sexuality costs him a place at an international rugby tournament. Unable to find Núria, a suspicious Amaia searches for evidence of doping.

Facing a downward spiral, HPC Pyrenees decides to get tough on the athletes. Cristian turns heads in the center as Amaia becomes increasingly lonely.

After a surprise return to the center, the world tournament tests take a toll on Amaia. The documentary about Roque becomes juicier than expected.

As Cristian returns and Olympo offers its second sponsorship, an anti-doping raid causes panic. Amaia faces accusations of betraying her fellow athletes.

Olympo flaunts its chosen athletes to the media and Amaia spots a chance to uncover the truth about Núria. Meanwhile, Zoe faces a tricky dilemma.

Zoe's arrival at the sports center ignites rivalry, while Olympo offers major sponsorships. Amaia pushes Núria to her limits — with severe consequences.

Wracked with guilt about Núria, Amaia struggles to control her emotions. Zoe lets loose at a house party in the woods and has an unexpected hook-up.