The yellow grass would appear to be a hint: a shade like that would be unlikely, especially that visible at night. Therefore, it can be inferred that the grass is merely a visual allegory, in this case a specific reference to the Sakatchewan town of Yellow Grass. This is further enhanced by the reference to potato-jacking. One can assume that Martin and Lewis intended this as a flashback issue to the Great Depression which informed their childhoods; and according to the Wikipedia page, during the Great Depression, potatoes were used in Yellow Grass to replace hockey pucks. As Canadians without hockey are like a body without a heart, a potato-jacking organization could indeed pose a hefty threat.

The only argument against this reading is that Martin appears to be wearing the colors of Gambia.

Fixed?