You don't help him escape.
Get on the ship, and travel to the island where the prison is. Find the warder. He will give you the location of the escaped prisoner's cell. He will lock you in. Move the bed to find a hole. In the hole, use the thermal sensor to find him. He is the ghost under the bank.
The ghost in the bank was an escaped prisoner, a forger. Travel to the Prison island in the boat near the Inn, then locate the Warden's office (level H) . Place the Hot Cross Buns on the table, and the Warden will give you a mugshot of the prisoner. Travel to the prisoner's cell (level D), then push aside the bed and enter the tunnel. At the end of the tunnel is the prisoner. Above him is the bank vault, blocking his way out. Use the pickax to escape from the cell when you leave the tunnel.
after the blimp is the bank
The bank is in Super Power Island.
McGready's bank is in Rock Ridge
rock ridge
you have to what until they rob it
in super power island
In rock ridge
On a Ford Escape V6 : firewall 1-----2-----3 ( bank 1 ) 4-----5-----6 ( bank 2 ) front of vehicle
The V6 engine in a Ford Escape : firewall 1-----2-----3 ( Bank 1 ) 4-----5-----6 ( Bank 2 ) front
You Get On The Bank Booth And Jump on The Plant Ledge And You Jump To Her