The same network that brought us "The Secret World of Alex Mack" in the 1990s has once again teamed up with Thomas Lynch to bring us "The Troop"--Nickelodeon's first sci-fi procedural series. Every episode starts out with a cold open that ends with a mystery right before the opening credits roll (like in "House"). The three members of The Troop--Jake, Felix, and Haley--then figure out the cause of the mystery inside and outside of school. It's not particularly violent, but it might be too scary for kids under 7. In general, it's a very interesting and unique series that will get kids thinking, but this isn't a show that will have a massive appeal like "iCarly" or "Spongebob". At most, "The Troop" will become a niche hit like "The Office" and "Fringe". Teens and adults who like mystery procedurals like "Fringe" and comedic procedurals like "Bones" and "Castle" might like "The Troop".