We're leaving our comfort zone -- full throttle. Last year, we were hanging out at the farm in Tuscany. This year,we're journeying to the center of the Earth.
Alison is worried that everyone thinks we're crazy. Brian isn't worried at all, he's been crazy for years.
She's bringing peanut butter crackers, air masks and a headlamp.
He's bringing Lara bars, a HELP sign and a Power Monkey.