allright,i explain^^ Expect Spoilers!
After DMC3,a woman named Trish destroys Dantes office and tells him the king of the Underworld,Mundus (Thats the guy you see when you kill 100 demons at the endscene of DMC3) was sealed 2000years ago by sparda,but 20 years ago he returned.Dante and Trish go to Mallet Island where he is supposed to be.After a bit of time,Dante encounters a fighter named "Nelo Angelo".Nelo Angelo beats Dante in the first fight,but sees the Amulett and freaks out.You have to beat him 3 times in the whole game.In the 3rd fight he takes his helmet off.Once you beat him,Dante recognices him being Vergil.He takes Vergils Amulett,and with both Amuletts combined the Sword of Sparda reveals its true form.Soul edge.Dante enters the Underworld and is betrayed by Trish.He still let her live.Finally you fight Mundus.You see that he killed (well,she looks pretty dead) Trish.Dante gets angry and transforms into Sparda.First you have a fly scene,then you have to fight him in a volcano like area.once you beat him,Dante goes back to Trishs corps and leaves his Soul edge beneath her.The Island breaks and you have to escape.You fall down,encounter trish (oh noes,she is alive again D

and Mundus.Mundus is kinda destroyed and you just have to shoot him while going backwards.Then you see a CS where Dante loads his Pistole and shoots him dead.Dante and Trish are hopeless and think they are doomes,but the plane that you can see in a room near the entrance you start the first mission falls down.Then they flyed out of the Island.It explodes.Dante and Trish are safe and happy. END
DMC2 wasnt that bad,but it had a lack of Storyline,and the missions were quite wierd:/
Story

ante has to prevent a guy from getting Ultimate Demon power.He succeds.End
(Yes,thats pretty much the whole story ;_

If you think that was helpfull,give me a Reputation plus,please^^
BTW:i thougt it maybe was meant sarcastic because he said "If you need help with this game tell me" and you asked after the whole story line^^ anyway,here you go
