<P> One of Jason's most cunning moments is the gambit he plays against Goldar, who kidnaps the parents of Angel Grove High's students, then ransoms them for the Ranger's five Power Coins . Jason would later reveal that though he gave up his Tyrannosaurus Power Coin to Goldar, he kept the Dragon Power Coin . With it, Tommy eventually regains his Green Ranger powers, retrieves the other Ranger's Power Coins and helps the team save their captive parents . </P> <P> When Lord Zedd arrives and overruns Rita, he sends his new brand of Putty Patrollers to Earth . The Putties possess superior strength to Rita's Putties, but it is Jason who discovers their weak spot . In order to compete with their new enemy's more powerful monsters, the Dinozords are upgraded into the mythical Thunderzords; Jason's being the Red Dragon Thunderzord, which can transform into a humanoid form . As with the Tyrannosaurus, the Red Dragon is capable of defeating a monster on its own, separate from the Megazord formation . </P> <P> Eventually, Tommy loses his Green Ranger powers again, and Jason suffers from immense guilt because of it . Choosing to capitalize on Jason's vulnerability, Zedd creates candles for Zack, Billy, Trini and Kimberly that would remove their links to the Morphing Grid, just as Rita did to Tommy . Jason, with the help of Zordon's confidence in him, manages to save his friends and prevent them from losing their powers . Following the victory, Jason wins a martial arts trophy and dedicates it to Tommy, who soon after returns as the White Ranger and is named the new leader of the team by Zordon . Tommy's return relieves Jason's guilt towards him, and accepting him as his successor as the team's leader . Tommy still heavily relied on Jason due to his experience, as shown where he asks for Jason's help because he is struggling to defeat Nimrod the Scarlett Sentinel, Jason then comes to Tommy's aid and together with the other Rangers they defeat the Nimrod . </P> <P> Some time later, Jason, Trini and Zack are chosen to act as ambassadors at a Peace Conference in Switzerland (after the actors playing the characters left the show over contract disputes, the characters simply being shown in their Ranger uniforms, using old footage, or with doubles who were never directly facing the cameras, until the transfer could be incorporated into the plot of the show), and are forced to leave the team . Zordon chooses Rocky DeSantos to replace Jason as the Red Ranger . </P>

When does jason come back to power rangers
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