In May and June, the band headlined the Tooth & Nail Tour with support from the Classic Crime, the Fold, Sullivan, Run Kid Run, Hawk Nelson and Project 86. The album received much online publicity before its release, much due to MxPx's return to Tooth and Nail Records.
On May 2, 2007, Secret Weapon was announced for release. In the same announcement, the album's track listing was revealed, and the title track was made available for streaming.