In a realm where time dances to its own tune, Rick and Morty stumble upon a forgotten device that can replay past moments from any dimension. What starts as a lighthearted exploration of their greatest hits quickly spirals into a mind-bending journey, as the echoes of their choices begin to intertwine with their present selves. As they grapple with their own echoes and the consequences of their actions, the line between past, present, and future blurs. With reality itself at stake, Rick and Morty must navigate a labyrinth of timelines to set things right and confront the echoes of their own humanity. "Eternal Echoes" is a tale of fractured time, existential twists, and the unbreakable bond between a genius grandfather and his earnest grandson.