Driving through flooded road

How high was the water? Are all the electronics working? When you attempt to start it, is it a single click, or multiple rapid clicks? IF you get a single click AND all of your electronics are exhibiting normal behavior, you may have hydrolocked the engine. The very first thing you'll want to do is have a mechanic remove the spark plugs and spin the engine over. Any skilled mechanic will know where to go from there.

The starter probably got wet, may have a problem with the starter now, should have it checked. Try tapping on the starter with a hammer when trying to start it.