What's wrong here? Now with video!

After this little video (and a short one after it) all connectors are hot to the touch, the motor was very hot, and the esc was hot. All from like 10 seconds. When I take the motor off the spur, it spins fine.

I had something like this happen before, it turned out to be bad solder on the bullet. I checked the this time, one was loose so I soldered it better.