Ambush — Sigmund Brouwer

Set at an experimental community on Mars in the year 2039-2040, Robot Wars features 14-year-old virtual reality specialist Tyce Sanders. Life on the Red Planet is not always easy, but it is definitely exciting. As Tyce explores his strange surroundings, he finds that the mysteries of the planet point to his greatest discovery―a new relationship with God. He talks about his growing faith and curiosity in a manner that kids can relate to as they are probably wondering some of the same things.
In book three, Ambush, Tyce has to rescue his friend Director Rawlings and three other scientists who are trapped in a cave-in on Mars. He also has to uncover a devious plot that threatens to overtake the spaceship―just as they are nearing the end of their six-month journey from Mars to Earth.