Matt Damon and Jimmy Kimmel’s long-running faux feud reached a hilarious new chapter this week on ABC’s “Who Wants to Be a Millionaire.” But this time, Damon had a surprise ace up his sleeve in the form of “Jeopardy!” super-champ Ken Jennings. Together, the unlikely duo kept the laughs coming, and raised the stakes with every question.

Damon, no stranger to ribbing his late-night nemesis, couldn’t resist stirring the pot on Kimmel’s turf. But what started as another chapter in their comic rivalry quickly turned into one of the most memorable episodes in the game show’s latest run.

Matt Damon Teams Up With Ken Jennings on ‘Who Wants to Be a Millionaire’

According to Deadline, this episode saw Damon, 53, enter the hot seat with Jennings as his trivia partner. The actor played for Water.org, the nonprofit he co-founded to help provide clean water access in developing countries. But with Kimmel hosting, and the cameras rolling, it didn’t take long before their infamous tension took center stage.

“Everybody but Jimmy Kimmel, do we love Matt Damon or what?” Jennings joked as the two tackled the final question, sparking raucous cheers from the studio audience. Damon couldn’t help but smile. “Thank you so much! You are making him so miserable right now,” he told the crowd, clearly relishing the moment.

Kimmel fired back with his signature sarcasm, shouting, “You’re turning this into an uprising! I’m coming onto ‘Jeopardy!’ with someone you hate!”

Charity and Comedy Come Together for ‘Who Wants to Be a Millionaire’

While the roasting may have stolen the spotlight early on, the episode ended on a major high note. Damon and Jennings ultimately answered their way to the game’s top prize—earning a full $1 million for Water.org. It marked a rare perfect run and one of the biggest moments yet on the show’s new season.

“Millionaire” returned to ABC last week for its fourth season, premiering as the number one telecast of the night with 4.24 million viewers. The show has also become ABC’s top-rated entertainment program of the summer.

Kimmel, who has hosted and executive produced the revival since 2020, welcomed back celebrity contestants playing for charity, injecting fresh humor and heart into each episode. Damon’s appearance, filled with jabs, laughs, and a major win, stood out as a perfect example of what makes the series click.

It also marked another milestone in Damon’s efforts to use his platform for good, proving once again that he can dominate in Hollywood, philanthropy, and now even game show trivia—especially when it involves needling Jimmy Kimmel.

“Who Wants to Be a Millionaire” airs Wednesdays at 8/7c on ABC and streams next day on Hulu.