If you choose to destroy the wall, then you can roll every half hour. If you get a hit, meaning the wall is down, you are free to escape, and so is everyone else in jail. However, if you do get a hit, then that will alert the guard, who will redirect everyone to another cell and keep an eye on you, meaning, you can only destroy the wall down once, and only one person can destroy it.
If you choose to go through the entire jail, then you will have to go through three rooms. First, you have to escape from your cell. There are two ways to do this.
1. Break the bars of the cell, easy.
2. Snag a key from a guard. This only comes into play until AFTER someone destroys the wall (if anyone does), because the guard will be near you. This will mean you can't break the cell bars (so this will be the only way to escape)
After you get out of your cell, you need to sneak past the guard without waking him up. This is self explanatory, if you get caught, you go back to your cell and you can try again in 2 hours.
After you get past the guard, all you need to do is get out. No one will stop you, so once you get past the guard, just post 30 minutes later that you escaped from jail.
That's about it, if anything is confusing, then just pm me.
BTW, this is where you're sent when you go to jail