In Tockworth's Clockworks, Bunson accompanied his Azimuth and Martial Artist Ragnum Ironknuckles toward the Lockford Lightspring to investigate a distant cave-in. Intent on rescuing Nessa Nina Quickpick Rumbauld Pennyluck, Merben Ordri Fizzlehide Pennyluck, and Punmiri Tel-Phaeun, the group attacked a Grick and Grell. Bunson was seized by the hunting Grell mid-battle when the creature attempted to flee with him in its grasp, but Ragnum's timely bunny-punch through the Grell's brain freed the mastiff before he could be carried off.
After the party healed his injuries, Bunson joined the expanded group as they fought off monsters from the Undermire and made their way back to the refugee camp outside Old Lockford, created due to the Big Little Lockford Lockdown. There, with the rest of the party contracted to enter the sealed town and end the threat posed by Azimuth's old flame, Bunson was left behind alongside Merben and Mayor Zamzu Quickzipper Ukkem Zapp Mulberry Kreem. The mastiff waited loyally at camp until his master's triumphant return, where he was made the new Security Overseer of Little Lockford.