Is there hope of retrieving hard drive film?

I am such an idiot. My camcorder fell off the kitchen table and landed in the dog water. The camcorder will now not even power up. I am cross about the camcorder but more worried about precious film on the hard drive of my Grandson. Is there any hope of retrieving this? Is there also any hope for my 1 year old camcorder also? Thank you very much for your help.