Thanks to Katy for these transcripts of Due South.

Jump to season: 1 - 2 - 3 - 4

Season 1

1x01 - Pilot
1x02 - Free Willie
1x03 - Diefenbaker's Day Off
1x04 - Manhunt
1x05 - They Eat Horses, Don't They
1x06 - Pizzas and Promises
1x07 - Chinatown
1x08 - Chicago Holiday, Part 1
1x09 - Chicago Holiday, Part 2
1x10 - A Cop, a Mountie and a Baby
1x11 - The Gift of the Wheelman
1x12 - You Must Remember This
1x13 - A Hawk and a Handsaw
1x14 - An Eye For an Eye
1x15 - The Man Who Knew Too Little
1x16 - The Wild Bunch
1x17 - The Blue Line
1x18 - The Deal
1x19 - An Invitation to Romance
1x20 - Heaven and Earth
1x21 - Victoria's Secret, Part 1
1x22 - Victoria's Secret, Part 2
1x23 - Letting Go

Season 2

2x01 - North
2x02 - Vault
2x03 - Witness
2x04 - Bird in the Hand
2x05 - The Promise
2x06 - The Mask
2x07 - Juliet is Bleeding
2x08 - One Good Man
2x09 - The Edge
2x10 - We Are the Eggmen
2x11 - Starman
2x12 - Some Like it Red
2x13 - White Men Can't Jump to Conclusions
2x14 - All the Queen's Horses
2x15 - Body Language
2x16 - The Duel
2x17 - Red, White, or Blue
2x18 - Flashback

Season 3

3x01 - Burning Down the House
3x02 - Eclipse
3x03 - I Coulda Been a Defendant
3x04 - Strange Bedfellows
3x05 - Mountie and Soul
3x06 - Bounty Hunter
3x07 - Seeing is Believing
3x08 - Spy vs. Spy
3x09 - Dead Guy Running
3x10 - Perfect Strangers
3x11 - Asylum
3x12 - Mountie on the Bounty, Part 1
3x13 - Mountie on the Bounty, Part 2

Season 4

4x01 - Doctor Longball
4x02 - Easy Money
4x03 - A Likely Story
4x04 - Odds
4x05 - The Ladies Man
4x06 - Mojo Rising
4x07 - Mountie Sings the Blues
4x08 - Good for the Soul
4x09 - Dead Men Don't Throw Rice
4x10 - Say Amen
4x11 - Hunting Season
4x12 - Call of the Wild, Part 1
4x13 - Call of the Wild, Part 2

Random Due South Trivia

Fraser is named after the Fraser River in British Columbia, Canada. Diefenbaker is named after John Diefenbaker, Prime Minister of Canada, 1957-63. Thatcher is named after Margaret Thatcher, Prime Minister of the UK, 1979-90.