Have an Ice Day (S03E17)

Change is in the air as Tess Fontana (Jaime Ray Newman) picks up the reins at Global, leaving little time to spend with Carter (Colin Ferguson). Zoe (Jordan Hinson), inspired by helping deliver Allison's baby, takes a Eureka-fied aptitude test to help guide her choice to pursue medicine - and is told that she should pursue robotics. Zoe's disappointed, but Lucas (Vanya Asher) is thrilled. Would that have anything to do with him wanting her to join him at M.I.T.? Meanwhile, Carter and Lupo (Erica Cerra) oversee traffic control for a special delivery by truck - a very long truck. Inside is an ice core drilled from the Arctic, brought in by Zane (Niall Matter) and the project leader - Taggart (Matt Frewer), back from a year-long walkabout. (iTunes)