A mysterious bigfoot-like footprint found near a crime scene puzzles the CSI team as they work to uncover who - or what - killed a father and son.
Sheldon's search for a comic book leads him to a breakthrough. Also, Georgie and Mandy have an uncomfortable first encounter with her parents, Jim and Audrey.
Kat and Max finally go on a first date, after a steamy hookup, but they can't seem to act like themselves. Meanwhile, Carter attempts to train his son for track but realizes Randi might make a better coach.
Sarah Millican flails about with a frying pan, Munya Chawawa pulls off a brilliant billiards shot, and all five comics spend far too long searching for a bath, given its size...
Avi solves Elisabeth’s disappearance; Paul plans to leave New York; Hanney has a moment of honesty.
Avi pursues possible suspects of the bomb threat; Elisabeth Serra’s backstory is revealed.
Entrepreneurs hope the Dragons don’t churn them away; a married couple looks to scrub out the competition in an out of fashion market; and a company seeks an investment for a fetching new treat. Plus, a determined plant lover believes a deal will take root.
Avi searches Vincent’s building and the people within it; Dania’s intentions are questioned.
Avi questions Vincent’s friends and family to learn more about the tormented and lonely boy.
"You must be so lonely." These were Taehee’s words to Dongju’s story and after sharing a secret, the two become closer.
The secrets of Vincent’s case rise to the surface; Zack’s writing is further investigated.
The team grapples with Anna’s fate; Avi questions whether Elisabeth is missing or dead.
Avi investigates a bomb threat at a local daycare; Paul’s wife is reported missing.
Yeo-reum, in an attempt to clear Jae-hoon's name and to publicly apologize, airs Jae-hoon's plight in an episode but the attempt is misinterpreted by Jae-hoon, as he deems this as a cheap shot for her ratings. Meanwhile, due to the many circumstances surrounding the two, Jiyeon and Jae-hoon grow closer.
After that day, Ji-ho waits for Sang-eun who didn’t turn up. Sang-eun doesn’t have the courage and hesitates and Ji-ho returns to his cold self. The co-workers become more worried seeing Ji-ho being so emotionless. Meanwhile, Sang-eun realizes her feelings through honest advice from Gwang-nam and Madam Yoo…
After a power station attack, Alfie, Daveboy, and Martha attempt to help Gully Troy restore public opinion of PWEs. Meanwhile, Dr. Glubb tries to stop Foulkes’ reckless use of Lullaby.
Eden works around Felicity’s wedding issues. Theo becomes fodder in Justin and John’s rivalry. Tane receives some bad news.