Once a Ranger is a special 15th Anniversary Team-Up that comprises the 20th and 21st episodes of Power Rangers Operation Overdrive.
The 15th Anniversary Team

From Left to Right: Kira, Xander, Adam, Bridge, Tori


Thrax, the son of Rita Repulsa and Lord Zedd, awakens and unites all of the villains seeking the Corona Aurora into a single alliance, which subsequently severs the Overdrive Rangers' link to the Morphing Grid, making them unable to morph. To make matters worse, the gems still need protecting! Sentinel Knight decides to form a team of replacement rangers to guard it, but will it be enough?

Retro RangersEdit

Adam Park - Black Mighty Morphin Ranger

Tori Hanson - Blue Wind Ranger

Kira Ford - Yellow Dino Ranger

Bridge Carson - Red SPD Ranger

Xander Bly - Green Mystic Ranger