it was about charlie somehow ending up in prison and don trying to find him and get him out. the power goes out at the prison and when don finally shows up and finds him, he finds charlie teaching the convicts math. can't remember more about it.
...Sneakerhead? It aired 02/06/2009.? Here are the lyrics to the first song:
"Ay, is you ridin wit me? You want this money, let's get get it.
If you're down for me, I ain't funny, I'm commited.
Don't be lyin to me. (I couldn't understand the next portion of the lyrics).
Ay, little mama, you...