The first scene is a flashback of the day that Richard Parker record himself telling about what OsCorp Industries was trying to use his research and studies for bio-weapons to the US Military. Haven't I heard something like this before? Like MANY TIMEs really. After taking Peter to Uncle Ben and Aunt May's, Richard and his wife, Mary when on board their, private jet? Anyway during their flight, he tries to upload his recordings to his secret lab in Roosevelt train station, but was interrupted by a man who claim to work for OsCorp, attempted to assassinate Richard. Richard managed to upload the recordings and died with his wife in their plane.
In the present, Spider-Man chased Aleskei Sytsevich for stealing plutonium that is in the OsCorp van and during that scene, Gwen, at her School Graduation, called and ask "Where are you, Peter?" And in the end of that, Spidey managed to arrive on time to attain the Graduation and for a minute, give Gwen a kiss, IN PUBLIC? WHAT IS WRONG WITH YOU PETER PARKER?
After Peter emailed his Spidey Pics to J Jonah Jameson, (if wondering, nobody playing as Jonah) he look at the news learn that Norman Osborn is dying and felt very sorry for him. As Norman's son, Harry reunite with Peter and both talk like their old days, and if any of you guys watch one of the trailers that Peter tell Harry that he made some web design, that kind of raise suspicions of Peter is Spider-Man OR thinking Peter is working for the WebHead.
Max Dillion was forced to stay back at OsCorp to fix an electrical wire that was disconnected and he requested the guys that is in charge of the electricity to shut it down but rejected that request, because they don't care, so Max just have to reconnect the wires himself though failed because after putting the wires together again, electrocutes him and fell in where the eels are, resulting creating his evil persona, Electro.
Harry also have cancer, and he thinks SpiderMan's blood gives a cure, though unfortunately SpiderVenom (name for Spidey's Powers) only work on Richard's DNA which means his son is the only person left and why I'm saying this is because Peter have his DNA due to his birth. Harry did manage to inject himself one, and Richard was right, because it affects him WAY too different.
As for Gwen's fate in this film, it is unfortunate because she was hanging to Spider-Man's webs and it was cut by the clock's parts (don't know what it is called) which makes her fell and Peter tries to catch her with his webbing but she hit the ground as the web catches her resulting her death.
In the End, after the day of Gwen's death, Peter tries to give up being Spider-Man and visits her grave everyday, and when he watched his own copy of her speech for the School Graduation, this actually inspired Peter to become SpiderMan again, and fought against the Rhino in the final scene.
