Q: Jumped friends car, on way hope all power lost 3 times within 20 minutes, immediately returned. got home turned off, won't turn on

Hey guys, I need some help here. I have a 2011 Chevy silverado and a co-worker of mine needed a jump. So in order to pull next to him I had put my vehicle in 4HI in order to go over a couple medians properly. Proceed to jump his car and everything goes right, positive on positive, negative on negative. Jumps right up. Concluding the jump, I put my truck back in 2WD, and continue to go home. On my way home I loose all power 3 times while driving 20 minutes. Upon a loss of all power an immediate return of power. Get home park, and try to change the rotary switch again to change gears and gears won't change; strange. Turn off truck, and tried to turn back on to reset, and no power at all. Compleatly shot and no lights, no alarms, nothing? What do I do? Thanks in advance for the help!
My car has an automatic transmission.