The episode ends on a hilariously petty note. Ha-ru discovers a suspicious video clip of Myung-se on a tablet. For a man who lives to annoy the "altruistic brained" detective, this is pure gold. Ha-ru’s delight in finding "dirt" on his partner sets up the next episode's inevitable (and likely backfiring) sabotage attempt.
You can catch up on the full episode with English subtitles on platforms like Rakuten Viki or Netflix .
Picking up from the tense cliffhanger, (Jung Yong-hwa) goes undercover to save Detective Geum Myung-se (Cha Tae-hyun) from a "Salvation and Heal" ritual. The scene is classic Brain Works —Ha-ru doesn't just walk in; he makes a theatrical entrance dressed as the "Savior" from the cult's own prophecy, confusing the believers just long enough to orchestrate an escape with Ji-yul and Eun-jung. The Science of the "Spirit" Brain.Works.S01E06.720p.VIU.WEB-DL.AAC.H.265-iT...
Are you more of a fan of the or the comedy between Ha-ru and Myung-se? Brain Works- K-Drama Episode 6 Recap & Review
Ha-ru’s "divine" intervention at the cult headquarters. The episode ends on a hilariously petty note
Ha-ru finds leverage against Myung-se, much to his glee.
True to his "extraordinary brain" persona, Ha-ru isn't satisfied with just a physical rescue. He vows to show the victims the real "wicked spirit" that caused their suffering—using neuroscience to debunk the cult’s supernatural claims. By exposing the truth behind the child’s supposed possession before a dangerous exorcism can take place, the team managed to shut down the fraudulent ritual. Ha-ru’s delight in finding "dirt" on his partner
If you thought the first few episodes of Brain Works were wild, Episode 6 takes the eccentricity to a whole new level. Mixing high-stakes tension with the show’s signature "bickering bromance," this episode centers on a dangerous cult and a desperate rescue mission. The Great Cult Escape