DO YOU WANT TO KNOW A SECRET? - Liz (Shiri Appleby) is in a panic when she discovers that someone has taken her diary, which contains dangerous and detailed information about the aliens, and confides in Maria (Majandra Delfino) first and Max (Jason Behr) second, leading to paranoia, false accusations and wounded feelings. Meanwhile, Michael (Brendan Fehr) finds that an art class is bringing him closer to unraveling the mystery of his recurring vision of a mysterious dome that he suspects holds the answers to the fourth alien. Katherine Heigl, Colin Hanks, Nick Wechsler and William Sadler also star. David Semel directed the episode written by John Harmon Feldman