[2] The event took place on August 2, 2019 at the Esports Arena in Santa Ana, California and aired live on Impact Plus.

The main event was a singles match between Sami Callihan and Tessa Blanchard, resulting from winning the Mashup Tournament, to determine the #1 contender for Brian Cage's Impact World Championship at Bound for Glory.

At Slammiversary XVII, Brian Cage defeated Michael Elgin to retain the Impact World Championship.

[6] On the July 19 episode of Impact Wrestling, the teams of Callihan and Blanchard, Elgin and Willie Mack, Moose and Eddie Edwards and Jake Crist and Wentz qualified for the fatal four-way elimination match in the Mashup Tournament, which Callihan and Blanchard won,[7] thus setting up a rematch between the two at Unbreakable.

[8] At Slammiversary, Taya Valkyrie successfully defended the Knockouts Championship against Havok, Su Yung and Rosemary in a Monster's Ball match.

[10] It was announced that Crist would defend the X Division Championship against Ace Austin, Trey Miguel of The Rascalz and two unnamed opponents in a five-way match at Unbreakable.

[11] At Bash at the Brewery, The North (Ethan Page and Josh Alexander) defeated The Latin American Exchange (Santana and Ortiz) to win the World Tag Team Championship, thus making the tag title match between LAX and The Rascalz at Slammiversary, a three-way match, where North retained the titles.

It was later announced that North would defend the titles against Reno Scum (Adam Thornstowe and Luster the Legend) and the team of Rich Swann and Willie Mack in a three-way match at Unbreakable.

[14] A few more matches were announced for the Unbreakable special including Eddie Edwards versus Michael Elgin and Madison Rayne in action.

Next, Jake Crist defended the X Division Championship against Ace Austin, Adrian Quest, Danny Limelight and Trey Miguel in a five-way match.

North nailed a tandem alley oop on Thornstowe to win the match and retain the World Tag Team Championship.

In the main event, Tessa Blanchard took on Sami Callihan to determine the #1 contender for the Impact World Championship at Bound for Glory.

However, he praised some of the matches and in-ring performances, citing "Impact Wrestling had a good outing for their return to SoCal.

"[19] Rich Swann and Willie Mack retained in title contention as they earned a World Tag Team Championship match against The North at Bound for Glory.