What are the main heists in grand theft auto v story mode?

The evidence provided focuses exclusively on Grand Theft Auto Online, the multiplayer component of Grand Theft Auto V. It details the game's release dates, features, and setting in the fictional state of San Andreas. However, the question specifically asks about the main heists in Grand Theft Auto V's story mode, which is the single-player campaign. Since the evidence does not mention any heists from the story mode or provide details about missions like the Jewel Store Heist, Pacific Standard Heist, or other story mode-specific heists, no accurate information can be extracted from the given source. The user may need to consult additional sources that cover the single-player campaign of Grand Theft Auto V to answer their question about story mode heists.