WoL/HotS were cracked the very same day at the release, not the case. You can Google it and be cheating in about 2 minutes if that's your.
Before the murderous forces of the Terran Dominion close in, you must plot your escape to the dark reaches of space — and reclaim your living empire at the Heart of the Swarm. StarCraft II: Heart of the Swarm is the second major release in the epic StarCraft II trilogy saga. Designed to be the ultimate competitive real-time strategy game, StarCraft II features the return of the Protoss, Terran, and Zerg races, overhauled and re-imagined with Blizzard’s signature approach to game balance.
Each chapter of Starcraft II focuses on a specific faction of the Starcraft war. StarCraft II also features a custom 3D-graphics engine with realistic physics and the ability to render several large, highly detailed units and massive armies on-screen simultaneously.