THE TEST: Everyone but Sandy's not sure how he's going to handle Rebecca's case. Caleb wants a DNA test and Marissa tests her mom's stamina when she tells her about Alex. Seth fears he's going to lose Summer forever if she goes to Italy with Zack. THE RAINY DAY WOMEN: Summer decides. Lindsay makes a difficult choice while Marissa takes ANOTHER step with Alex. THE MALLPISODE: Ah yes, the one where Ryan, Marissa, Summer and Seth get locked in the mall. It's sooo last year. An opportunist from Julie C-N's not-so lilywhite past rears his head while Kiersten's future looks different with a new collegue on the scene. THE BLAZE OF GLORY: Ryan's friendship with Marissa tests Alex's green eyes as they plan to build the bonfire for a water polo pep rally. Meanwhile, Sandy is helping out Julie C-N - bizarre!