Accusations fly as several rival pairs try to figure out who controls the game behind the scenes in a new episode of "The Challenge All Stars: Rivals."

Tonight during “Old Friends, New Rivals”, the contestants try to figure out who is in charge behind the scenes.

Rivals — accusations fly as several Rival pairs try to figure out who is controlling the game behind the scenes. Shane targets an alliance member that he feels is threatening his position in the game and friendship with his long-time BFF,

A star is up for grabs, and the six rival pairs fight tooth and nail in the first ever Star Challenge for their ticket to the final in a new episode on Wednesday.

The Challenge All Stars: Rivals premieres Season 5 Episode 6 tonight on Wednesday, March 5 at 8 p.m. on MTV. The reality series features the best competitors from across The Challenge seasons coming back to settle their scores. Tune in to watch this week’s episode with a free trial of Philo.

All Stars," the 5th season of MTV's long-running "The Challenge," is continuing on Wednesday, March 12 at 8 p.m. There are several ways to watch with a free live stream.

On this week's new episode, accusations fly as several rival pairs try to figure out who is controlling the game behind the scenes.

Spoiler alert! Find out which 'Challenge' all-stars were eliminated in Week 7, as the house turned itself upside-down looking for 'they.'