I need help. No brakes

[Mmorgan32]

So driving home today all of the sudden no brakes what so ever. It started off slow, every other time I pushed them the went down alittle further than usual then Back to normal. Then all of the sudden nothing. I have power drum brakes btw. So got it home and my master cylinder cap was extremely hot but it is 105* outside today. It has plenty of fluid. My question is can the brake fluid get to hot to where it don't work or do I just need to bleed my brakes? I have every once in awhile gotten some brake fade too.