rough idle/ car not moving when going to accelerate

Ok, so something totally weird happened to the cruze today. Sitting in traffic when all of a sudden I get a pulsating rough idle and I happen to look down at rpms and each time the rough idle hit the rpms went to 0 then back to 1,000, repeatedly.. then it stops but when traffic starts to move, I apply my foot to the gas pedal, car doesn't move...dafuq? Left scratching my head..any suggestions?

14 cruze rs 2lt 35k miles a/t