4 - 1$1 Million Dollar Edition Sep. 22, 2003- 4 - 2Return to Las Vegas (1) Sep. 29, 2003
- 4 - 3Return to Las Vegas (2) Oct. 06, 2003
- 4 - 4
- 4 - 5Heli Water Drag; Cow Eye Juice; Truck to Truck Transfer Oct. 20, 2003
- 4 - 6Halloween Episode Oct. 27, 2003
- 4 - 7All Female Episode #2 Nov. 03, 2003
- 4 - 8Four Stunt Episode #2 Nov. 04, 2003
- 4 - 9Water Sack; Beetle Roach & Worm Transfer; Spinning Ledge Nov. 10, 2003
- 4 - 10Truck to Helicopter; Table Clearing; Under the Semi Nov. 17, 2003
- 4 - 11Family Fear Factor Nov. 24, 2003
- 4 - 12Boat to Boat; Worm Wine; Matrix Truck Straddle Dec. 01, 2003
- 4 - 13Cable Surfing; Gift Exchange; Lake O' Fire Dec. 08, 2003
- 4 - 14Fear Factor Twins #2 Jan. 05, 2004
- 4 - 15Couples Fear Factor (1) Jan. 12, 2004
- 4 - 16Couples Fear Factor (2) Jan. 19, 2004
- 4 - 17Couples Fear Factor (3) Jan. 19, 2004
- 4 - 18Couples Fear Factor (4) Jan. 26, 2004
- 4 - 19Couples Fear Factor (5) Feb. 02, 2004
- 4 - 20Couples Fear Factor (6) Feb. 09, 2004
- 4 - 21Couples Fear Factor (7) Feb. 16, 2004
- 4 - 22Four Stunt Episode #3 Feb. 17, 2004
- 4 - 23Four Stunt Episode #4 Feb. 23, 2004
- 4 - 24All Female Episode #3 Mar. 01, 2004
- 4 - 25Siblings Fear Factor Mar. 08, 2004
- 4 - 26
- 4 - 27
- 4 - 28Tunnel Flag Snag; Potato Bug Bazooka; Tractor Car Roll Apr. 05, 2004
- 4 - 29Miss USA Edition #2 Apr. 12, 2004
- 4 - 30Team Transfer; Hagfish Transfer; Cable Stand Apr. 19, 2004
- 4 - 31Bound in Chains; Get the Gator; Heli Rope Transfer Apr. 26, 2004
- 4 - 32Dual Heli Beam Walk; Fly Shake; Hop the Train May. 03, 2004
- 4 - 33Underwater Tumbler; Bug Body Bag; Dual Heli Wall May. 10, 2004
- 4 - 34Family Beam Walk; Family of Roaches; Kid-A-Pult May. 17, 2004