After Vanessa's relationship with a hunky doctor goes bust before her sister's wedding, Kevin steps in as her 'successful doctor' date. Also, Kyle helps Kendra and Chale make a fake photo collage of honeymoon pictures to tout on social media

After talking to Lucifer and Linda, Maze realizes that she is looking for more out of life and decides to head to Canada for a tricky case. Chloe however, becomes concerned when she feels that Maze is being deceived by a scheming conman. Upon further investigation, Lucifer and Chloe make a stunning realization when they find that their target may be much closer than they thought.

While decommissioning an old nuclear missile, a simple accident causes Team Scorpion to endure exposure to toxic vapor while trying to prevent the nuke from detonating. Also, Paige confronts Happy about constantly tagging along with her and Walter.

Psi, a thief with psychic powers, attacks National City. Able to immobilize people by tapping into their worst fears, Psi proves a formidable opponent for Supergirl. Meanwhile, James and Lena are at an impasse, and Samantha starts her new job at L-Corp.

Wolowitz and Sheldon bond when they drive to the desert to shoot off a model rocket. Also, when Leonard's mom, Beverly, finds a new best friend in Penny, it rubs Leonard the wrong way.

Dr. Neil Melendez and the team have to wade through legal waters when a husband and wife have to make a life-changing decision about their unborn child. Meanwhile, Dr. Shaun Murphy struggles to adjust to his new environment at home and makes a huge step forward with his colleagues.

The battle rounds begin and the coaches enlist the help of top recording artists to offer their knowledge and skills as advisers. Blake Shelton teams up with Rascal Flatts, Adam Levine with Joe Jonas, Jennifer Hudson with Kelly Rowland, and Miley Cyrus with her father, Billy Ray Cyrus.