Orphaned sisters Vi and Powder bring trouble to Zaun's underground streets in the wake of a heist in posh Piltover.

Idealistic inventor Jayce attempts to harness magic through science—despite his mentor's warnings. Criminal kingpin Silco tests a powerful substance.

An epic showdown between old rivals results in a fateful moment for Zaun. Jayce and Viktor risk it all for their research.

Rogue enforcer Caitlyn tours the undercity to track down Silco. Jayce puts a target on his back trying to root out Piltover corruption.

Perilously close to war, the leaders of Piltover and Zaun reach an ultimatum. But a fateful standoff changes both cities forever.

A moment of darkness, a moment of light — and a vision of What Could Have Been.