Great Scott! It's a Back to the Future Renunion!

It was more than 1.21 jigawatts of fun when the cast of “Back to the Future” got together to discuss the legendary film franchise.

“One particular movie from 1985 has managed to capture our hearts and imagination perhaps more than any other,” Host, Josh Gad said in the beginning of the episode.

Fox, who was already known for starring on “Family Ties” when the original film came out, became a full-blown superstar after playing Marty McFly in “Back to the Future,” while Lloyd cemented his place in pop culture history for his portrayal as the eccentric and brilliant Doc Brown.

“He feels accepted with the doc. And it’s just a friendship,” Fox said about the bond their characters shared.

“Doc’s a mentor. I think Marty’s intrigued by the weird stuff I do,” Lloyd said.

Screenwriter Bob Gale and writer-director Robert Zemeckis also joined the reunion, as did Mary Steenburgen, who played Doc's love interest in the third film in the series. Composer Alan Silvestri and Huey Lewis, who wrote and performed the iconic “The Power of Love,” were also there.