A desperate dog owner is going to extreme lengths to try and find his beloved pet - including hiring a helicopter and sleeping outdoors in woodland.<br /><br />Determined Stuart Smith, 46, has vowed nothing will stop him finding Kahn - a one year old Leonberger - who vanished in storms three months ago.<br /><br />He and his partner Sharron, 55, have put their life "on hold" until they are reunited with Kahn.
