Oregon ranchers report a wave of animal mutilations linked to crop circles. Are UFOs to blame? George and ex-CIA officer Doug delve into the mystery.

George and combat pilot Vee visit a Brazilian island to investigate new sightings and uncover a possible link to a ’70s UFO attack that occurred nearby.

Could extraterrestrials be dwelling in our oceans? George and Doug head to Tampico, Mexico, to investigate claims of a magnetic alien base off the coast.

Determined to dispute a Pentagon report denying the existence of UFOs, George digs into a bombshell claim and sends Doug to a possible crash site in Iowa.

George and Vee receive new intel on the Phoenix Lights, a mass sighting reportedly witnessed by thousands. Experts test the debris from the Iowa crash.

In a rush to complete his counter report, George tracks down a witness to a key Big Sur sighting and delves into a theory about time-traveling aliens.

Shaken by the island ordeal, Hae Jo slips into a slump his friend Yang Bong-suk can’t lift. Meanwhile, Heung does everything to stay by Jae-mi’s side.

Afraid of hurting Jae-mi again, Hae Jo tries to push her away. Later, he takes on a new errand and meets a young girl looking for her long-lost brother.

After learning about Hae Jo’s severe condition, Jae-mi is determined to help him find his biological father. But when she returns, he’s gone.

Now alone with Heung, Hae Jo reflects on his unfortunate life. After a tense reunion at Kkari’s workplace, Hae Jo decides to confront his painful past.

Jae-mi makes a tough choice between Hae Jo and her devoted fiancé. Soon they head down to Busan, while a mysterious figure arrives to bail Heung out.