A berserker's wrathEdit
Minsc's cage is located northeast of the PC's initial position. Unlike Jaheira's cage, it has no key or switch to open the cell and lockpicking is useless. Instead, you have to talk to Minsc and try to agitate him to the point where he breaks out of his own cage with his immense strength. After breaking out, he will realize that the whole thing was a charade and will offer to join you.