Rick finally corners Rick Prime, the version of himself who murdered his wife Diane and the man he's chased across every dimension. The hunt sends him "fracking the Central Finite Curve" — teleporting infinite Ricks into kill-tubes — until the noise drags a retired, irritated Evil Morty into the fray and springs a trap that drops all three into a prison-box for Ricks who got too close. They escape a recorded battle-royale lie and a "Diane" that turns out to be a bomb, then track the real Prime to his lair, where he murders Slow Mobius (revealed as Rick's uncle) before Evil Morty disables him with a simple shirt-swap. Rick beats Prime to death, feels nothing, and walks home hollow while Evil Morty strolls off with the weapon plans.

The episode lands the series' biggest emotional payoff and then deliberately empties it: the revenge that defin ...