For eight years three grandmothers saved their money for a VIP tour packages to Hawaii. The grandmothers have all had difficult experiences and used their dream vacation as a beacon of hope in their lives. The grandmothers then go to the bank to wire their money, but at that moment the bank is held up by robbers. The grandmothers lose their savings and the bank can't offer any assistance. It is at this moment that the grandmothers set off track the robbers down themselves. Using their guile and wisdom the grandmothers are able to track one of the thieves down named Joon-Suk (Lim Chang Jung). Unfortunately for the grandmothers, Joon-Suk was swindled by his gang and is now completely broke. The grandmothers are not willing to give up their dream vacation. They then make Joon-Suk train them in the art of bank robbing and the grandmothers then set out to rob banks themselves ...