With the horrors of Halloween behind them, Kiko and Dom turn their puzzle solving skills to surviving the holiday season. Dom hasn't had a proper Christmas in years, and Kiko's sister visiting makes him feel almost like family -- until his brother, Devin, decides to show up and throw his disapproval into the mix. Just when it seems like they have enough to deal with at home, local artist Cat asks them to solve her vandalism problem. Still shaken...