Eight hundred feet underground...and deep into danger. It started out as an innocent road trip to Carlsbad Caverns to unwind, but now Max, Isabel, Michael, Liz, and Maria are totally regretting their plan. Hundreds of feet underground, in the cavern gift shop, Liz turns and is stunned to see someone she thought she'd never meet again—the man who shot her long ago in the diner. Their eyes meet and Liz bolts. But running won't solve the group's new "problem." Because the shooter has recognized Liz. Now he wants her dead. And nobody knows why.

When a desperate father kidnaps Michael to force him to use his healing powers to save the man's dying daughter, Max, Tess, Liz, Isabel, and Valenti set out to rescue Michael, but a nosy reporter could destroy everything.

It's Not Easy Being Green At first it seems amusing when Kyle Valenti's skin takes on a lime-colored hue. But within hours, the hospital has become a disaster area, full of humans who look more like aliens than the real "Scandinavian" occupants of Roswell. Soon, Maria and Alex have joined the club, and Max decides to use his powers to return them to normal. Except his healing touch apparently doesn't work when the trouble is cosmetic, and not life-threatening. While the military forces the colored population into top secret quarantine camps, Liz searches for a scientific explanation and finds a familiar culprit—and a new sense of urgency. Within forty-eight hours, this alien contaminant will change the humans' skin permanently, leaving the humans green...and Max, Michael, and Isabel unveiled.