「万引きGメン」の舞台はスーパー。棚卸しの最中、店長（かが屋・賀屋壮也）が店の在庫数と売れた数が全く合わないことに気付き、大量の万引き被害が発覚した。盗まれた商品はバッグや靴、メロンなどどれも高額なものばかり。現場を訪れた万引きGメンの吉住（吉住）と加賀（かが屋・加賀翔）は、店内で巡回を開始。メロンを店外に持ち出そうとした男性や靴売り場で怪しい動きをしている女性客を発見する。
"Shoplifting G-Men" is set in a supermarket. During an inventory, the store manager (Kagaya's Kaya Soya) notices that the number of items in stock at the store does not match the number of items sold, and a large amount of shoplifting is discovered. The stolen items are all expensive items, such as bags, shoes, and melons. Shoplifting G-Men Yoshizumi (Yoshizumi) and Kaga (Kagaya's Kaga Sho) arrive at the scene and begin patrolling the store. They discover a man trying to take a melon out of the store and a female customer behaving suspiciously in the shoe department.
