Morgan Edge blames Lena for children getting sick from lead poisoning.

Supergirl 3x05 "Damage" Season 3 Episode 5 Promo TV Spot

When multiple children get sick from lead poisoning, Morgan Edge (guest star Adrian Pasdar) points the finger at Lena (Katie McGrath) and blames her creation of the lead bomb she made to save National City from the Daxamites. While Lena knows she never intended any harm, she fears there may have been a flaw in her design, leaving her responsible. Kara (Melissa Benoist) teams up with Samantha (Odette Annable) to clear Lena’s name, but it turns out to be harder than they thought. Meanwhile, Alex (Chyler Leigh) and Maggie (guest star Floriana Lima) make a crucial decision about the future of their relationship. Kevin Smith directed the episode written by Eric Carrasco & Cindy Lichtman (#305). Original airdate 11/6/2017.

SUPERGIRL is based on the DC character Kara Zor-El, Superman's cousin, who after 12 years of keeping her powers a secret on Earth, decides to finally embrace her superhuman abilities and be the hero she was always meant to be. Kara lives in National City assisting media mogul Cat Grant. However, Kara's days of keeping her talents a secret are over when Hank Henshaw, head of a super-secret agency, enlists her to help protect the citizens of National City from sinister threats.

SUPERGIRL SEASON 3 EPISODE 5 DAMAGE PROMO TV SPOT EXTENDED TRAILER