It sounds like you're recalling a dramatic moment from "Power Rangers Lost Galaxy," specifically involving the Titanium Ranger in "Light Speed Rescue." In that episode, the Titanium Ranger, who was originally under the influence of an evil spirit, ultimately breaks free from its control and uses his weapon to strike back against the dark forces at play.
With the support of the other rangers and their Zords, they work together to defeat the demon spirit. The teamwork and courage exhibited by the Titanium Ranger and his allies exemplify the core themes of friendship and bravery that are central to the Power Rangers series. After the battle, the evil spirit is vanquished, signifying not only victory but also the power of unity and hope against darkness.
Let me know if you want to discuss more about this episode or the series in general!