maAsSIvE AaTtAcK Rx7

so i have really good and bad news i got the car to start and alot of white smoke came out the motor was on for a few seconds then it shut off but every time i started to turn the key it would start and shut off quickly and i removed the battery and know it wont start not even the starter would turn but all the light and every thing else works am thinking its a ground but don't know were it is and were it goes. and when the motor started it made a clacking sound. neeed help please