S04E02: The Deep
Sheldon Hawkes goes under water to gather clues but could be in danger when he can't come up for air. Mac learns of something else under water.
Previous Episode 
Season 1
Blink
S1E1 / 22 Sep 2004
Creatures of the Night
S1E2 / 29 Sep 2004
American Dreamers
S1E3 / 06 Oct 2004
Grand Master
S1E4 / 27 Oct 2004
A Man a Mile
S1E5 / 03 Nov 2004
Outside Man
S1E6 / 10 Nov 2004
Rain
S1E7 / 17 Nov 2004
Three Generations are Enough
S1E8 / 24 Nov 2004
Officer Blue
S1E9 / 01 Dec 2004
Night, Mother
S1E10 / 15 Dec 2004
Tri-Borough
S1E11 / 05 Jan 2005
Recycling
S1E12 / 12 Jan 2005
Tanglewood
S1E13 / 26 Jan 2005
Blood, Sweat & Tears
S1E14 / 09 Feb 2005
'Til Death Do We Part
S1E15 / 16 Feb 2005
Hush
S1E16 / 23 Feb 2005
The Fall
S1E17 / 02 Mar 2005
The Dove Commission
S1E18 / 23 Mar 2005
Crime and Misdemeanor
S1E19 / 13 Apr 2005
Supply and Demand
S1E20 / 27 Apr 2005
On the Job
S1E21 / 04 May 2005
The Closer
S1E22 / 11 May 2005
What You See Is What You See
S1E23 / 18 May 2005
Season 2
Summer In The City
S2E1 / 28 Sep 2005
Grand Murder at Central Station
S2E2 / 05 Oct 2005
Zoo York
S2E3 / 12 Oct 2005
Corporate Warriors
S2E4 / 19 Oct 2005
Dancing With The Fishes
S2E5 / 26 Oct 2005
Youngblood
S2E6 / 02 Nov 2005
Manhattan Manhunt (II)
S2E7 / 09 Nov 2005
Bad Beat
S2E8 / 16 Nov 2005
City Of The Dolls
S2E9 / 23 Nov 2005
Jamalot
S2E10 / 30 Nov 2005
Trapped
S2E11 / 14 Dec 2005
Wasted
S2E12 / 18 Jan 2006
Risk
S2E13 / 25 Jan 2006
Stuck On You
S2E14 / 01 Feb 2006
Fare Game
S2E15 / 01 Mar 2006
Cool Hunter
S2E16 / 08 Mar 2006
Necrophilia Americana
S2E17 / 22 Mar 2006
Live or Let Die
S2E18 / 29 Mar 2006
Super Men
S2E19 / 12 Apr 2006
Run Silent, Run Deep
S2E20 / 19 Apr 2006
All Access
S2E21 / 26 Apr 2006
Stealing Home
S2E22 / 03 May 2006
Heroes
S2E23 / 10 May 2006
Charge of this Post
S2E24 / 17 May 2006
Season 3
People With Money
S3E1 / 20 Sep 2006
Not What It Looks Like
S3E2 / 27 Sep 2006
Love Run Cold
S3E3 / 04 Oct 2006
Hung Out to Dry
S3E4 / 11 Oct 2006
Oedipus Hex
S3E5 / 18 Oct 2006
Open and Shut
S3E6 / 25 Oct 2006
Murder Sings the Blues
S3E7 / 01 Nov 2006
Consequences
S3E8 / 08 Nov 2006
And Here's To You, Mrs Azrael
S3E9 / 15 Nov 2006
Sweet Sixteen
S3E10 / 22 Nov 2006
Raising Shane
S3E11 / 29 Nov 2006
Silent Night
S3E12 / 13 Dec 2006
Obsession
S3E13 / 17 Jan 2007
The Lying Game
S3E14 / 24 Jan 2007
Some Buried Bones
S3E15 / 07 Feb 2007
Heart of Glass
S3E16 / 14 Feb 2007
The Ride-In
S3E17 / 21 Feb 2007
Sleight Out of Hand
S3E18 / 28 Feb 2007
A Daze Of Wine And Roaches
S3E19 / 21 Mar 2007
What Schemes May Come
S3E20 / 11 Apr 2007
Past Imperfect
S3E21 / 25 Apr 2007
Cold Reveal
S3E22 / 02 May 2007
Comes Around
S3E23 / 09 May 2007
Snow Day
S3E24 / 16 May 2007
Season 4
Can You Hear Me Now?
S4E1 / 26 Sep 2007
The Deep
S4E2 / 03 Oct 2007
You Only Die Once
S4E3 / 10 Oct 2007
Time's Up
S4E4 / 17 Oct 2007
Down The Rabbit Hole
S4E5 / 24 Oct 2007
Boo
S4E6 / 31 Oct 2007
Commuted Sentences
S4E7 / 07 Nov 2007
Buzzkill
S4E8 / 14 Nov 2007
One Wedding and a Funeral
S4E9 / 21 Nov 2007
The Thing About Heroes
S4E10 / 28 Nov 2007
Child's Play
S4E11 / 12 Dec 2007
Happily Never After
S4E12 / 09 Jan 2008
All in the Family
S4E13 / 23 Jan 2008
Playing With Matches
S4E14 / 06 Feb 2008
DOA For a Day
S4E15 / 02 Apr 2008
Right Next Door
S4E16 / 09 Apr 2008
Like Water For Murder
S4E17 / 16 Apr 2008
Admissions
S4E18 / 30 Apr 2008
Personal Foul
S4E19 / 07 May 2008
Taxi
S4E20 / 14 May 2008
Hostage
S4E21 / 21 May 2008
Season 5
Veritas
S5E1 / 24 Sep 2008
Page Turner
S5E2 / 01 Oct 2008
Turbulence
S5E3 / 08 Oct 2008
Sex, Lies and Silicone
S5E4 / 22 Oct 2008
The Cost Of Living
S5E5 / 29 Oct 2008
Enough
S5E6 / 05 Nov 2008
Dead Inside
S5E7 / 12 Nov 2008
My Name is Mac Taylor
S5E8 / 19 Nov 2008
The Box
S5E9 / 26 Nov 2008
The Triangle
S5E10 / 10 Dec 2008
Forbidden Fruit
S5E11 / 17 Dec 2008
Help
S5E12 / 14 Jan 2009
Rush to Judgement
S5E13 / 21 Jan 2009
She's Not There
S5E14 / 11 Feb 2009
The Party's Over
S5E15 / 18 Feb 2009
No Good Deed
S5E16 / 25 Feb 2009
Green Piece
S5E17 / 11 Mar 2009
Point of No Return
S5E18 / 18 Mar 2009
Communication Breakdown
S5E19 / 25 Mar 2009
Prey
S5E20 / 08 Apr 2009
The Past, Present and Murder
S5E21 / 15 Apr 2009
Yahrzeit
S5E22 / 29 Apr 2009
Greater Good
S5E23 / 06 May 2009
Grounds for Deception
S5E24 / 13 May 2009
Pay Up
S5E25 / 14 May 2009
Season 6
Epilogue
S6E1 / 23 Sep 2009
Blacklist
S6E2 / 30 Sep 2009
Lat 40° 47' N/Long 73° 58' W
S6E3 / 07 Oct 2009
Dead Reckoning
S6E4 / 14 Oct 2009
Battle Scars
S6E5 / 21 Oct 2009
It Happened to Me
S6E6 / 04 Nov 2009
Hammer Down (II)
S6E7 / 11 Nov 2009
Cuckoo's Nest
S6E8 / 18 Nov 2009
Manhattanhenge
S6E9 / 25 Nov 2009
Death House
S6E10 / 09 Dec 2009
Second Chances
S6E11 / 16 Dec 2009
Criminal Justice
S6E12 / 13 Jan 2010
Flag on the Play
S6E13 / 20 Jan 2010
Sanguine Love
S6E14 / 03 Feb 2010
The Formula
S6E15 / 10 Feb 2010
Uncertainty Rules
S6E16 / 03 Mar 2010
Pot of Gold
S6E17 / 10 Mar 2010
Rest In Peace, Marina Garito
S6E18 / 07 Apr 2010
Redemption
S6E19 / 14 Apr 2010
Tales from the Undercard
S6E20 / 05 May 2010
Unusual Suspects
S6E21 / 12 May 2010
Point of View
S6E22 / 19 May 2010
Vacation Getaway
S6E23 / 26 May 2010
Season 7
The 34th Floor
S7E1 / 24 Sep 2010
Unfriendly Chat
S7E2 / 01 Oct 2010
Damned if You Do
S7E3 / 08 Oct 2010
Sangre Por Sangre
S7E4 / 15 Oct 2010
Out of the Sky
S7E5 / 22 Oct 2010
Do Not Pass Go
S7E6 / 29 Oct 2010
Hide Sight
S7E7 / 05 Nov 2010
Scared Stiff
S7E8 / 12 Nov 2010
Justified
S7E9 / 19 Nov 2010
Shop Till You Drop
S7E10 / 03 Dec 2010
To What End?
S7E11 / 07 Jan 2011
Holding Cell
S7E12 / 14 Jan 2011
Party Down
S7E13 / 04 Feb 2011
Smooth Criminal
S7E14 / 11 Feb 2011
Vigilante
S7E15 / 18 Feb 2011
The Untouchable
S7E16 / 25 Feb 2011
Do or Die
S7E17 / 11 Mar 2011
Identity Crisis
S7E18 / 01 Apr 2011
Food For Thought
S7E19 / 08 Apr 2011
Nothing For Something
S7E20 / 29 Apr 2011
Life Sentence
S7E21 / 06 May 2011
Exit Strategy
S7E22 / 13 May 2011
Season 8
Indelible
S8E1 / 23 Sep 2011
Keep It Real
S8E2 / 30 Sep 2011
Cavallino Rampante
S8E3 / 07 Oct 2011
Officer Involved
S8E4 / 14 Oct 2011
Air Apparant
S8E5 / 21 Oct 2011
Get Me Out Of Here
S8E6 / 04 Nov 2011
Crushed
S8E7 / 11 Nov 2011
Crossroads
S8E8 / 18 Nov 2011
Means To An End
S8E9 / 02 Dec 2011
Clean Sweep
S8E10 / 06 Jan 2012
Who's There?
S8E11 / 13 Jan 2012
Brooklyn Til I Die
S8E12 / 03 Feb 2012
The Ripple Effect
S8E13 / 10 Feb 2012
Flash Pop
S8E14 / 30 Mar 2012
Kill Screen
S8E15 / 06 Apr 2012
Sláinte
S8E16 / 27 Apr 2012
Unwrapped
S8E17 / 04 May 2012
Near Death
S8E18 / 11 May 2012
Season 9
Reignited
S9E1 / 28 Sep 2012
Where There's Smoke...
S9E2 / 05 Oct 2012
2,918 Miles
S9E3 / 12 Oct 2012
Unspoken
S9E4 / 19 Oct 2012
Misconceptions
S9E5 / 26 Oct 2012
The Lady in the Lake
S9E6 / 02 Nov 2012
Clue: SI
S9E7 / 09 Nov 2012
Late Admissions
S9E8 / 16 Nov 2012
Blood Out
S9E9 / 30 Nov 2012
The Real McCoy
S9E10 / 07 Dec 2012
Command+P
S9E11 / 04 Jan 2013
Civilized Lies
S9E12 / 11 Jan 2013
Nine Thirteen
S9E13 / 18 Jan 2013
White Gold
S9E14 / 01 Feb 2013
Seth and Apep (2)
S9E15 / 08 Feb 2013
Blood Actually
S9E16 / 15 Feb 2013
Today Is Life
S9E17 / 22 Feb 2013
Gary Sinise
Mac Taylor
Anna Belknap
Lindsay Monroe
Sela Ward
Jo Danville
Carmine Giovinazzo
Danny Messer
Hill Harper
Sheldon Hawkes
Eddie Cahill
Donald Flack Jr.
Robert Joy
Sid Hammerback
