Doom of the Lighthouse Star Winx Club : Season 8 Episode 6

The Winx and Twinkly follow Orion to the star, Iridia. Here they discover that the core has been destroyed, and with their Cosmix powers, they cannot repair it. Twinkly finds her friend, Lumilla and Orion, disappointed by the failure of the Winx, is contacted by Valtor, who offers him a deal: if he helps him to take out the Winx, he will save Prometia, Orion's home planet...