I need this very urgent?

iam a big fan of dragonballz somehow from my freiend i got all the episodes from cell games saga to the end i had a bet with my freind saying that iam having from first to last that is from saiyan saga to majin buu saga iam having saiyan namek ginu freeza sagas but i dont have trunks and android saga with babidi saga can anyone tell me from where ican download these 3 sagas not by each episode at once iwant to downlaod the whole saga at one downlaod can anyone please tellme where i can get these for free please i need this help very urgently since ihad a bet that i will show all these to my friend please help me