You'll arrive on another street. Head right and fight the likes of Dirk and Fat Jack. There's also a barrel here, which usually contains a health item. Head on right to find Callman. Callman has a few attacks, including one where he grabs you and boots you in the back.

He's backed up with some Skull Cross members, which include a new enemy: May. May has a grab move and can also slice you with one of her knives. Callman also has a punch attack, and his other main move in his charge. He tends to use this if you're close to him and he's getting up. Just stay away from him whenever he gets up and you should be able to defeat him pretty easily. Once beaten, he'll try to get up, but won't make it and will remain on his knees.