i drove into a deep puddle. my 2014 scion tc died out. i was towed to my house

What is your question?

it wont start. the air filter was soaked, so i dried it. the battery was dead, so i replaced it. now when i try to start it, the engine turns and it sounds like it's gonna start, but it doesn't. i don't know what to do. change the spark plugs? idk. could anyone help me please