Baltimore aus vielen Blickwinkeln: Polizisten hören einen Drogenring ab, und jede Staffel nimmt eine weitere Seite der Stadt dazu – den Hafen, die Politik, die Schulen, die Zeitung. Am Ende steht das Bild einer Stadt, in der die Institutionen mehr bestimmen als die Menschen.
| Staffel | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1Ø 8.5 | 1 The Target7.8 | 2 The Detail8.1 | 3 The Buys8.1 | 4 Old Cases8.2 | 5 The Pager8.2 | 6 The Wire8.5 | 7 One Arrest8.4 | 8 Lessons8.4 | 9 Game Day8.7 | 10 The Cost9.2 | 11 The Hunt8.8 | 12 Cleaning Up9.1 | 13 Sentencing9.0 |
| 2Ø 8.4 | 14 Ebb Tide7.6 | 15 Collateral Damage8.0 | 16 Hot Shots8.0 | 17 Hard Cases8.0 | 18 Undertow8.1 | 19 All Prologue8.8 | 20 Backwash8.2 | 21 Duck and Cover8.3 | 22 Stray Rounds8.5 | 23 Storm Warnings9.0 | 24 Bad Dreams9.2 | 25 Port in a Storm9.0 | |
| 3Ø 8.6 | 26 Time After Time7.9 | 27 All Due Respect8.2 | 28 Dead Soldiers8.3 | 29 Hamsterdam8.3 | 30 Straight and True8.5 | 31 Homecoming8.6 | 32 Back Burners8.5 | 33 Moral Midgetry8.9 | 34 Slapstick8.7 | 35 Reformation8.7 | 36 Middle Ground9.6 | 37 Mission Accomplished9.3 | |
| 4Ø 8.7 | 38 Boys of Summer8.3 | 39 Soft Eyes8.4 | 40 Home Rooms8.6 | 41 Refugees8.3 | 42 Alliances8.4 | 43 Margin of Error8.7 | 44 Unto Others8.4 | 45 Corner Boys8.5 | 46 Know Your Place8.5 | 47 Misgivings8.8 | 48 A New Day8.9 | 49 That's Got His Own9.3 | 50 Final Grades9.6 |
| 5Ø 8.7 | 51 More with Less8.0 | 52 Unconfirmed Reports8.1 | 53 Not for Attribution8.5 | 54 Transitions8.8 | 55 React Quotes8.6 | 56 The Dickensian Aspect8.3 | 57 Took8.4 | 58 Clarifications8.9 | 59 Late Editions9.4 | 60 -30-9.6 |