The Power of Three

Harry Potter isn't as alone as he used to think and has two older brothers who are very protective of their little brother. Will they be able to find their parents while having to defeat both Voldemort AND Dumbledore?
Dumbledore/Ron/Hermione/Ginny/Molly Bashing.
*This story will be more modern so I can use technology nowadays. And I will use America terms for school and stuff because I don't know the British ones enough to use them properly. I'm also using the movies as a base as I have only read the first book. Mainly because I can't ever find our copies of the others.*

The time for the three of them might be wrong, but I'll try to do it correctly.
This is a story I thought of and since I'm having trouble with my other stories I will be writing this in the mean time. While still trying to write the others of course.