Simple. Go on Animefreak.tv,then click on Anime A-Z go to F,click on Fullmetal Alchemist then click an episode,i'll show you the rest in this screencap.
You hop onto a unicorn in your back yard and fly to the north pole, where these secret agents will come and take you away to China. In China they will give you a one of a kind device called a laptop. Once you get the laptop open it and type in google.com. Then search FMA dub episode 5. Voila! You get the show.
