Crashing down

Skye johnsonberg was a normal 14 year old girl living in the year 5317, but things changed shortly after her birthday. Skye's parents told her that something had gone terribly wrong in the past. The United States made a hug mistake putting the human society in great danger because they got In contact with intelligent life from friegn (A different planet then earth) and now the Friegns are trying to kill the human society . The government has a machine where you can go back to anytime in the past and if something changes in the past, the changes will be permanent. The Johnsonberg family is very poor, and this particular job pays a lot of money- because it consists a strong chance of death. Skye decides she has too and she takes her brother Asher and best friend Rai......