What happens when four tween BFFs get together? Anything! Really! Meet the Juniors (aptly named because they have their parents names): 'Derik' David Markum - saxophonist, auto-junkie and impulsive-adventurer with adrenaline running through his veins; Angela 'Christine' Lopez - leader-extraordinaire, nature-lover, texting-champion and hyper-talker; 'Marion' Katherine Morgan - the brains of the outfit (her dad works for NASA), computer-addict, animal-lover, laid back 'goody-goody' of the bunch, and classical pianist; and finally, but not least, 'Dylan' Rutherford Daniels - mild-mannered rich kid, yo-yo expert, comedian and master voice impersonator. Somehow, trouble always seems to find them, and NOT the other way around. They fight crime and solve mysteries. Their talents and character get them through most of it, but it's usually teamwork that saves the day. Danger is at their every step, but they manage to fight the bad guy and still make it through school.