Virgil is in trouble again (once again trying to help). Alex is missing a necklace worth a lot of money and since it goes missing at Catalyst, everyone becomes a suspect. Pi, who is still keeping her real idenity secret, feels she needs to prove her innocence, this is where Virgil tries to help (by downloading detective stories off the NET). Meanwhile, Marcello's younger sister Sam gets lost on the streets keeping the kids busy.
