The megacorporations Big Ten are central pieces of the Shadowrun world. Keeping track of the issues that concern them is important for both players and game masters. New chaos constantly threatens the companies, and Ares' withdrawal from the UCAS and the death of the head of Spinrad Global, Johnny Spinrad, increase this turbulence. Power Plays examines each of the Big Ten, as well as some important AA companies, while providing plots for game masters and character options for players. If you are involved with the Sixth World in any way, this book is essential.