Christmas trouble

Intro You and your family just moved to North America and your mother is still in Australia, that's where you lived. It's Christmas time and your dad doesn't have a lot of money so Christmas isn't going to be great as always. you're the oldest sibling and your name is Zak, sorry girls, you're a boy. You're 15. Jack is 12, and he's your younger sibling, he's also a boy. your youngest sibling's Lilly, she's 10. Your dad's name is Johnny and he took you all to the mall to do some Christmas shopping. The mall is huge and busy, cuz it's Christmas eave. Your dad left you and your siblings alone and told you 3 to meet him in 4 hours at the huge Christmas tree. Your brother and sister ditched you and you searched for them. They went ice skating and a bag full of money fell off a balcony above them. Turns out it's fake money that 2 men, their names are Nathan and John, were planning on using for Christmas shopping and paying fake money. Your siblings didn't know it at the time and went crazy, buying everything they saw. the police have been waiting for the fake money trick and your siblings gave someone their address to deliver a truck full of chocolate which they ordered. the police went to your house and got a picture of the whole family, they are now searching for you all in the mall and you know nothing about it. They already arrested your dad and the badguys, Nathan and John are looking for your siblings.