SOS Three refers to the three wrestlers who carried Society of Sim during the first era in 2005. Derek "The Wolf" Mayfield, The Buck, and Zach Zero. These three competitors are the most famous SOS wrestlers from the first era, therefore they are unofficially recognized as the SOS Three.
Currently, The Buck and Zach Zero are the two members of the SOS Three who remain in the company. Zero has only recently returned after a nine month hiatus. Derek Mayfield left SOS in January 2006.
The Buck is the only member of the SOS Three to have remained in SOS since the very beginning with no significant breaks.
New versions of the SOS Three have been named since Mayfield's departure, with wrestlers including Twist and Y72. The Buck is the only wrestler to have been in all "incarnations" of the SOS Three