This is what the trailer tells me:
* Dad tells him to keep his identity a secret, he doesn't listen.
* Eventually pays the price of not listening to dad, leads to his being arrested just as Zod and Co appear on Earth.
* Escapes, defeats Zod and Co, goes back in time, (him with the beard watching his younger self disobey dad) to prevent previous timeline.
* Film ends with successful timeline alterations, setting up sequel in which adult Clark Kent has job at Daily Planet as if nothing ever happened.
That look about right?