Pokémon Ashen Frost, formerly Pokémon Present, revolves around Sylvester, a kind, albeit surly, officer-turned-detective in Riverview City. Sylvester works alongside his not-quite-canine unit, Swinub, to solve minor cases. Tracking down missing cheques and ice sculpture vandals doesn't come without risks, however; the frigid metropolis is home to ordinary people and criminals alike. To uncover the truth, Sylvester steps on the toes of some of the city's most important figureheads... as well as the mafia's.