Rick and Morty vs. Cthulhu

Rick and Morty vs. Cthulhu is a four-issue mini-series comic written by Jim Zub. The story revolves around the Smith family as they traverse a hellscape populated by the works of H. P. Lovecraft to track down and defeat Cthulhu.

Summary
The comic follows Rick as he attempts to save Morty from the clutches of the forces of Cthulhu. As Rick is trapped in a cycle of reincarnation, Morty bonds with Cthulhu's daughter Cathy, and Summer faces off against the Cats of Ulthar.