Owen's crew deals handles what turns out an extreme mercury poisoning attack, where Paul's "gift of threat assessment" pinpoints a malicious culprit. After a nuisance 9-1-1 call involving a neighborhood dispute, the crew deals with a gas leak in an apartment complex, where time almost runs out while they use psychology to lure a conspiracy believer away 'his way'. TK hastily suspends his gay affair with hit cop Carlos, whose home dinner suggests he wants a relationship, unlike TK. EMT captain Michelle answers a personal call for help aiding a young boy with an asthma attack; the grateful family has a clue about her sister Iris's disappearance three years prior. She later consults a 'curandera' (healer witch) for advice, while her kin won't touch more false hope. Judd and Owen bond over their therapies for post-traumatic stress disorder (PTSD) viz. lung cancer.
—KGF Vissers