Sezon 4
Bölümler
1 The Telephone Only Rings Twice 14 Oca 1990 2 Strictly Business 21 Oca 1990 3 The Treasure 28 Oca 1990 4 No Deposit, No Return 4 Şub 1990 5 At Last 11 Şub 1990 6 Fine Adjustments 18 Şub 1990 7 Old Scores 25 Şub 1990 8 Dangers in the Night 4 Mar 1990 9 The Quest 11 Mar 1990 10 Best Laid Schemes 18 Mar 1990