What Goes Around Comes Around (season finale)
Episode 10 of 10 within Season Three: Part II. Item 44 of 90 overall.
Production number S3E18.
Jaime Paglia - Writer
Matthew Hastings - Director
28 votes

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


Goof: Tess sends Jack an airline ticket to visit her in Australia. The ticket reads 'From: Eureka, Oregon, To: Sydney Australia.' Seems odd that a commercial carrier would have a terminal in the most secret town in America. Eureka is a town created by the US government for its top scientists to experiment with new technologies. It is made nearly invisible from the outside by giant holograms. Very few non-residents even know of its existence.

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.


Welcome to Eureka, a seemingly normal small town somewhere in the Pacific Northwest. But you won't find it on any maps outside of the Pentagon. And if you're here you must be a genius. Because everyone else in town is.

related items

Previous episode :
043 Have an Ice Day
Next episode :
045 Founder's Day

regional titles

Wat Rondom Ga Komt Rondom
What Goes Around Comes Around (season finale)
On Récolte ce qu'on Seme
Was Herum Geht, Kommt Herum
Cad Goes Timpeall Tagann Timpeall
Ciň che Va Intorno Viene Intorno
Lo de Ida y Vuelta