Episode 51 is the twentieth and final episode of Season 3 of Alex & Co. and the 51st episode overall. It premiered in Italy on February 18, 2017.
It's the time of the challenge to proclaim the real Nobody. All of Alex's friends are on his side, whereas Ivan is supported by the Lindas, who have developed a plan to beat Alex and destroy him in all ways. The truth about Nobody is be restored and Alex, Emma and Ray perform without masks showing all their talent. At the end, Nicole appears by surprise at the Blue Factory.