Trailer Emergency Brake

[champ]

I forgot to unhook the s hook cable for the emegency brake and pulled the truck away from the trailer. I didn't drag the trailer or anything but I did active the emergency brake. It's a Titan set up. The cable is an S hook that goes to the truck hitch and the other end is attached to something that looks like a shifter handle and it pulled (activated).

How do you reset this? It's a 5 Star Trailer with drum brakes, and Titan emergency brake. Next to the 'handle' is the brake filler cap.

Any help is appreciated.

Thanks