At the end of the camping event, Chris discovered a doll and brought it home. In a later day, it was revealed that the doll was in fact, an imaginary friend. Chris was horrified at first, but the doll convinced him to not be scared. Chris then gave the doll a name, Charlie.
Since Chris was the only one who could saw Charlie, every time they talked, everyone around Chris would saw him talk to himself. Chris' mother, Lily was the one who noticed this and became afraid that something went wrong to him. Chris' friend and crush Tamera Gerardo also noticed Chris' "strange behaviour" when they went fishing since Chris brought Charlie with him.
After learning about the possibility to made Charlie via Imaginary Friend metamorphium potion, Chris decided to find the potion's raw material, the Rainbow Gem. Unfortunately, neither his friends nor sisters didn't believed him. However, Tamera, who believed in his story, agreed to help him find the gem. Thanks to a fortuneteller, Chris and Tamera learned that there at least one Gem located in Sunset Valley's old mine. But, they couldn't went there without an adult or older sim to accompany them, until they joined by Alex who voluntered to took care of them.
During their search, the three encountered a Big Steve Underwood. Jean and Leona arrived in the mine as well. Big Steve chalenged them to play Poker if they really want to get the gem. Alex accepted the chalenge, and won after tricking Big Steve to gave up, made the homeless man believed that Alex had stonger cards, even though it revealed that Alex had no chance for winning with his cards.
