Williams debuted in Total Nonstop Action Wrestling on February 25, 2004, a member of Team Canada.
He and the remainder of Team Canada took part in the TNA 2004 World X Cup Tournament, but were defeated by Team Mexico and Team USA.

On August 11, 2004, Williams won the X Division Championship in a twenty-two man Gauntlet for the Gold match, entering at number eleven and pinning The Amazing Red to win the bout.

Early in his title reign, Williams claimed that the Canadian Destroyer could not be countered.
According to Williams, Bully Ray told him to focus the entire match in his finishing move.
However, after Williams successfully retained the title in a match with A.J. Styles at Victory Road on November 7, 2004, Chris Sabin began claiming that he was capable of countering the move.
He went on to counter the Canadian Destroyer into his own finishing move, the "Cradle Shock", on three occasions in the month following Victory Road.
However, Sabin was unable to defeat Williams for the X Division Championship at Turning Point on December 5, 2004.
Williams's reign would last for five months and five days, (which would become the longest X Division title reign until Christopher Daniels won the title in 2005), before ending on January 16, 2005 at Final Resolution, where he was defeated by A.J. Styles in an Ultimate X match that also featured Sabin.

At Lockdown on April 24, 2005, Williams and fellow Team Canada member Eric Young unsuccessfully challenged America's Most Wanted for the NWA World Tag Team Championship.
They challenged then-champions The Naturals at Slammiversary on June 19, 2005, but were once again defeated.

Williams returned to the X Division on July 17, 2005 at No Surrender, unsuccessfully challenging X Division Champion Christopher Daniels.
Williams, along with the rest of Team Canada, would go on to join Planet Jarrett upon TNA's debut on Spike TV in October 2005.
After winning an Ultimate X match at Bound for Glory on October 23, Williams received a title shot against A.J. Styles at Genesis on November 13, but was again defeated.
Williams would resume wrestling in the X Division and faced off against Chris Sabin, Elix Skipper, Shark Boy, Puma and Chase Stevens in an Xscape Match at Lockdown.
Williams and Sabin were the final two competitors, but Williams lost after Sabin was able to climb over the cage and escape.

Williams again acted as the captain of Team Canada in the 2006 World X Cup Tournament.
He lost to Jushin Thunder Liger at Sacrifice in a Captain vs. Captain semifinal match, but won the Gauntlet Match final to tie the points with Team USA.
On the following edition of Impact!,
he lost to Team USA captain Chris Sabin in a tiebreaker singles match.

On the June 29 episode of Impact!,
Jim Cornette announced that Team Canada would be disbanded immediately.
However, they were given one last chance to stay intact if they won a match a week later against Jay Lethal, Rhino, and Team 3D. Team Canada lost the match when Lethal pinned A-1, officially disbanding Team Canada once and for all.
On the July 27 edition of Impact!,
Williams won an X Division four-way match by defeating Sonjay Dutt, Johnny Devine, and Shark Boy after hitting Shark Boy with the Canadian Destroyer.
On the following week's Impact!,
he defeated Jay Lethal, Sonjay Dutt, Kazarian and Alex Shelley and became the number one contender to the X Division Championship.

At Hard Justice, Williams challenged the X Division Champion Senshi in a triple threat match also involving Jay Lethal.
During the match, Williams used the Canadian Destroyer on Lethal and was about to attempt a pinfall until Senshi dropkicked Williams out of the ring and pinned Lethal to retain his championship.
Williams debuted in Total Nonstop Action Wrestling on February 25, 2004, a member of Team Canada. He and the remainder of Team Canada took part in the TNA 2004 World X Cup Tournament, but were defeated by Team Mexico and Team USA.
On August 11, 2004, Williams won the X Division Championship in a twenty-two man Gauntlet for the Gold match, entering at number eleven and pinning The Amazing Red to win the bout.
Early in his title reign, Williams claimed that the Canadian Destroyer could not be countered. According to Williams, Bully Ray told him to focus the entire match in his finishing move. However, after Williams successfully retained the title in a match with A.J. Styles at Victory Road on November 7, 2004, Chris Sabin began claiming that he was capable of countering the move. He went on to counter the Canadian Destroyer into his own finishing move, the "Cradle Shock", on three occasions in the month following Victory Road. However, Sabin was unable to defeat Williams for the X Division Championship at Turning Point on December 5, 2004. Williams's reign would last for five months and five days, (which would become the longest X Division title reign until Christopher Daniels won the title in 2005), before ending on January 16, 2005 at Final Resolution, where he was defeated by A.J. Styles in an Ultimate X match that also featured Sabin.
At Lockdown on April 24, 2005, Williams and fellow Team Canada member Eric Young unsuccessfully challenged America's Most Wanted for the NWA World Tag Team Championship. They challenged then-champions The Naturals at Slammiversary on June 19, 2005, but were once again defeated.
Williams returned to the X Division on July 17, 2005 at No Surrender, unsuccessfully challenging X Division Champion Christopher Daniels. Williams, along with the rest of Team Canada, would go on to join Planet Jarrett upon TNA's debut on Spike TV in October 2005. After winning an Ultimate X match at Bound for Glory on October 23, Williams received a title shot against A.J. Styles at Genesis on November 13, but was again defeated. Williams would resume wrestling in the X Division and faced off against Chris Sabin, Elix Skipper, Shark Boy, Puma and Chase Stevens in an Xscape Match at Lockdown. Williams and Sabin were the final two competitors, but Williams lost after Sabin was able to climb over the cage and escape.
Williams again acted as the captain of Team Canada in the 2006 World X Cup Tournament. He lost to Jushin Thunder Liger at Sacrifice in a Captain vs. Captain semifinal match, but won the Gauntlet Match final to tie the points with Team USA. On the following edition of Impact!, he lost to Team USA captain Chris Sabin in a tiebreaker singles match.
On the June 29 episode of Impact!, Jim Cornette announced that Team Canada would be disbanded immediately. However, they were given one last chance to stay intact if they won a match a week later against Jay Lethal, Rhino, and Team 3D. Team Canada lost the match when Lethal pinned A-1, officially disbanding Team Canada once and for all. On the July 27 edition of Impact!, Williams won an X Division four-way match by defeating Sonjay Dutt, Johnny Devine, and Shark Boy after hitting Shark Boy with the Canadian Destroyer. On the following week's Impact!, he defeated Jay Lethal, Sonjay Dutt, Kazarian and Alex Shelley and became the number one contender to the X Division Championship.
At Hard Justice, Williams challenged the X Division Champion Senshi in a triple threat match also involving Jay Lethal. During the match, Williams used the Canadian Destroyer on Lethal and was about to attempt a pinfall until Senshi dropkicked Williams out of the ring and pinned Lethal to retain his championship.
Petey Williams