I practice Nick Cerio Kenpo since 3 years now and I'm brown belted. Circle of the Tiger is very diffucult to explain in a text but I'll try. This kata brings you to defend yourself agains enemies that are all around you. First someone at your left wants to hook you in you face (so you bloc and then punch him back in his stomac). Same thing at your right. After another enemy in front of you (you're at 45 degree on your right) comes with a stick or a katana to strike you on the top of your head. You X bloc this strike, grab his wrisp and pull him down to kick his face on your right knee.
Then another enemy comes behind you with the same type of attack followed with a right left kick. So you X bloc again and then bloc his kick with your left harm in kokutsu position to finish with an upper left bloc and a right punch in his stomac. Then you finish him with a right side kick in his legs, stomac or head. Now you are posotioned 90 degre right from your initial position. You have an upper right bloc and a left punch to give simultaneously on your right and the same movement on your left. I don't remember the name of this sequence but it's to bloc a strike on the top of your head and give to the enemy a stomac punch at the same time (and samething at your left).
Once the left bloc-strike done, you grab the head (or hears) of your left enemy and slide your right harm and leg at his feet so you swing him on the floor and you finish him with a right downward punch in his face with a Kyaï.
You rise up at 45 degree to your left and have to bloc a direct punch coming to your. So you move backward you left foot and strike the enemy harm between your left and right harm in order to break his elbow (lever action). Moving your right leg forward at 45 degree in his direction, you finish him with a shuto to the throat.
Another one comes directly at your right (left side of the previous enemy), so you backstrike him in his face with your right hand or fist. This combination of harm movement (shuto and backstrike) must be done very rapidly and requires precision.
Then looking at an enemy at your left (normaly your should be positioned in front of him meaning 180 degree from your start position), you "Tiger claw" him in his face and give him a palmstrike in his chest. You the finish him with a right sidekick followed by the same sequence of upper bloc/strike explained previously (right and left side..) Oufff
Then, being positioned at 90 degree from your initial position, you have to bloc a kick coming at your left with your two harms simultaneously. You finsih this sequence with a right low kick in his legs and show to the juges how you can keep your balance
Now you're looking at the juges; you have an enemy at your left who grab your hears. You hold his hand behind your head with your right hand and with your left hand, strike his elbow "bottom-up" in order to break. You give him a left low side kick in his legs. You grab his head with your left hand and right shuto him at the throat. You grab his shoulders with your two hands and pull his chest down on your right knee. Then you push him backward and finish him with a two hands shuto in his collarbone.
Finally, you come back in front of the juges with a kokutsu transitory position and finish your kata with the same sequence of movements you started (Kenpo kata entrance)