Rick (Justin Roiland) will introduce a new dimension to his grandson, Morty (Roiland), in the next episode of "Rick and Morty" Season 3.

The grandfather and grandson duo will have another fun adventure in Adult Swim's hit animated sitcom. In the "Rick and Morty" Season 3, episode 8 promo teaser, there will be no interdimensional cable, but the viewers will see Morty's mind blowers.

The teaser features Rick and Morty running away from someone who is chasing them. It looks like the pair has stolen something from another world again. The room is upside down with a lot of stairs within it. It has a tortoise statue, which suggests that it could be a temple in worshipping the Truth Tortoise that Rick and Morty steal, Heavy reported.

Morty is carrying the Truth Tortoise as they make their escape. It has three colorful eyes that suggest that it is not an ordinary turtle. "Morty don't drop the truth tortoise. Also, whatever you do, don't look into its eyes," Rick says. Morty sounds confused as he says, "I did look at it, Rick."

"Now, you're gonna know everything, Morty. Good Job," Rick responds. The scene cuts into Morty feeling sick. According to him, he cannot go on with the Truth Tortoise in his head. It seems that he remembers the things that Rick hides from him.

Rick invites his grandson somewhere and they arrive in a place that looks like a library. "What the hell is this Rick?" Morty asks his grandfather. "This is my archive of all the experience you've begged me to remove from your life. I call them Morty's mind blowers and we will be doing this instead of interdimensional cable."

"Rick and Morty" Season 3, episode 8 might also uncover some secrets from Morty's past. What's surprising is that Morty has a lot of memories that he wishes to forget.

Meanwhile, the last episode of "Rick and Morty" Season 3 was one of the best episodes in the series. Episode 7 surprised fans when it featured the Citadel again, which many believed Rick already destroyed in episode 1. According to Heavy, although Citadel is not yet ruined it is uninhabitable.

The series took a two-week hiatus for Labor Day weekend. But the network returned this weekend and aired a new episode on Sunday. They announced their return on Twitter. "NEW EPISODE TONIGHT 11:30 Rick and Morty and the magical underwater city of Atlantis," the announcement reads.

Watch "Rick and Morty" Season 3, episode 8, on Sunday, 11:30 p.m. EDT on Adult Swim.