Rifts Earth 4e Saga
Welcome to Rifts Earth 4e Saga
The campaign is one that mixes the 4e ease of play, with the Saga edition style of character development, set in perhaps the coolest gaming setting ever, RIFTS Earth and staying as true to the original source material as possible using new sleeker systems.
The Campaign Wiki. Basically the players handbook.
Start here Character Creation to see what you want to play.