there was a red ford focus in an industrial parking lot a few miles from paige's house. it was her car. and it was on fire. coming up -- mounting clues from that torched car to some items found by the road. >> could that have been placed there by paige as a trail? >> the investigation heats up. in "the secret life of a soccer mom." her credit card - "buy books, not beer!" ♪ ♪ but the second that she shut the door ♪ ♪ girl started blowing up their credit score ♪ ♪ she bought a pizza party for the whole dorm floor ♪ ♪ hundred pounds of makeup at the makeup store ♪ ♪ and a ticket down to spring break in mexico ♪ ♪ but her folks didn't know 'cause her folks didn't go ♪ ♪ to free-credit-score-dot-com hard times for daddy and mom. ♪ v.o.: offer applies with enrollment in freecreditscore.com ♪ ♪ [ male announcer ] sometimes, a hint is all the wrapping a