What to do facing an awkward appeal?

[xmizi]

What is the name of your state (only U.S. law)? California

This accident happened already 4 month ago. 2 moving cars collided into each other and one of them ended up hitting into my parked car. I had only liability cover on this car. So I contacted both parties' insurance, but they just kept blaming on each other.

I had to file a small claim against both of them. Only driver A appeared. So the judge ruled the default judgment against the absent driver B.

Now driver B and his insurance is appealing.

My question is:
in the appeal hearing, is it only between me and driver B? What if driver B has solid proof to blame all the way to driver A and sucessfully reverse the case? In that case I will have no one to catch since driver A is already off hook at the initial hearing? What can I do to avoid this scenario?

 

[CourtClerk]

In the appeal, the whole case is tried all over, like the first one never happened.

 

[xmizi]

Thank you very much for your reply! So driver A will have to come back to court otherwise he will lose the case automatically? Now I'm relieved!