"Underwater" is the ninth episode of the first season of Bates Motel. It aired on May 13, 2013.
After receiving a threatening note, Norma puts the motel up for sale and buys a house in Hawaii for her and Norman to move into. Miss Watson wants Norman to publish his creative short story but needs Norma's permission. A trimmer named Gunner gives Emma a marijuana cupcake; she gives into temptation and eats it. At her father's office with Dylan, Bradley finds love letters exchanged between her father and someone known as "B." Miss Watson decides to publish the story without Norma's permission. Norma's realtor tells her the property won't go up for sale. Norma is shocked to find Jake in her car with a pistol. Jake reveals that Shelby owed him $150,000 and threatens to kill her and her sons unless she delivers the money to him the next night. Norma agrees.
- Vera Farmiga as Norma Bates
- Freddie Highmore as Norman Bates
- Max Thieriot as Dylan Massett
- Olivia Cooke as Emma Decody
- Nicola Peltz as Bradley Martin
- Jere Burns as Jake Abernathy
- Nestor Carbonell as Alex Romero
- Vincent Gale as Gil
- Ian Tracey as Remo
- Keegan Connor Tracy as Miss Watson
- Alexander Calvert as Ra'uf
- Keenan Tracey as Gunner
- Matt Ellis as Danny
- Mercedes de la Zerda as Summer
- Matthew MacCaull as Matt Brownstein
- This episode was watched by 2.48 million viewers.