Change is hard; and Carter is about to get more than he bargained for.  Just as his life seems to be going smoothly, Zoe announces her acceptance into an early enrollment program for pre-med at Harvard. "Early" in this case means next semester. Neither Carter nor Lucas saw that coming. Carter tries his best to appear thrilled for Zoe while Lucas buries himself in his work with Henry.

While Carter is reeling from the news, new girlfriend Tess reveals that she's contemplating a job offer that will start right after Allison returns - and it's in Australia. Worse, she neglected to mention it before they slept together.  Ouch.  To top it all off, Henry and Lucas' analysis of the data downloaded from Kim reveals the approach of "Nemesis", a neutron star that could reverse the earth's poles and bring about the end of the world. Carter is somewhat relieved to learn that this event is about 2,000 years off.

original airdate--September 18,2009            rating--2.3 million

song--Eureka Theme song--"Eureka On My Mind" by Bear McCreary

1. "You And Me" by Dave Matthews Band

The September 18 season finale of Eureka averaged a 1.7 HH rating, 1.1 million Adults 18-49s, 1.2 million adults 25-54 and 2.3 million total viewers.  This summer Eureka has been adding approximately 800,000 total viewers per week from DVR playback data that is not recorded in the overnight ratings.