Tom und Jerry sind engagiert worden, Toodles und ihr Erbe zu beschützen. Bald erfahren die beiden, dass sie nicht die Einzigen sind, die mit diesem Job betraut wurden. Doch wer hat es auf das Erbe abgesehen?
When Toodles hires Tom and Jerry to investigate and protect her against a threat to her Tuna can inheritance. They go investigate, and a mysterious figure keeps trying to hurt them. They discover Butch was also hired by Toodles to protect the tuna. Spike was guarding the cans, but was distracted by the fighting and leaves the cans unprotected. They discover Toodles wasn't being completely honest with her story.
Toodle, une beauté féline, vient demander de l'aide au chat et à la souris détectives. Elle craint que l'on ne s'en prenne à sa réserve de sardines en boîtes. Tom et Jerry se mettent donc à la recherche de suspect et tombent vite nez à nez avec un individu suspect...
Toodles ingaggia Tom e Jerry affinché indaghino e la proteggano quando qualcuno minaccia la sua eredità di scatolette di tonno, ma una figura misteriosa continua a ostacolare le indagini.
