In the year 2013, a deadly 'rage virus' has taken over the planet, voiding the world of laughter. As the last remaining members of humanity to not have been infected with the virus, the 'Running Man' cast members were tasked with going into the last remaining virus-free zone on the planet and retrieving the vaccine that could cure them all.

However, there was soon more to the episode than met the eye, as one by one, they became infected with the virus due to an unknown assailant. The surviving members grew suspicious of a 'spy' in their midst - especially towards Yoo Jae Suk, who had a prior reputation of reversals.

The truth was, however, Yoo Jae Suk had been given a secret mission: there was someone amongst themselves who were spreading the virus, and passing him or herself off as his alter ego, 'Yoomes Bond', in the process.

Given his usual arsenal of high-powered H2O high-velocity ejection devices (or water guns), Yoomes Bond set out on his mission to find out who was sullying his name and trying to destroy the world of laughter.

However, it was only after half of the cast members were infected that Yoo Jae Suk finally figured out the truth: it was Song Ji Hyo who had been undermining the mission, having been given a secret task beforehand to infect everyone without their knowledge.

When only the two secret agents remained, Yoo Jae Suk eventually triumphed over the betrayer, putting a thrilling end to the latest episode of the 'Yoomes Bond' series.

Check out the full episode below!