Jack Makes His Move

S2, E25: In an attempt to make Toby jealous, Elizabeth partners with Jack in an end-of-year science experiment. However, Jack's persistence and undeniable charms are working their magic and when Jack kisses Elizabeth she begins to fall for him. Elizabeth shows off her lab to an impressed Jack who diverts her long enough to steal her mini-disc with the wicked science genius formula on it. In the classroom, a distracted Toby mucks up the final chemical reaction in Russ's polymer experiment which explodes, entrapping Mr. Woods in a foam bubble. Toby quickly invents a spray to dissolve the foam leaving Mr. Woods amazed at Russ's unlikely sudden talent. Jack secretly copies the genius formula and an over-confident and vulnerable Elizabeth has no idea that he is about to betray her.