In trying to prove to Diane that hip-hop isn't dead, Dre realizes he may be more of out of touch with current trends and his clients than he thought. Meanwhile, Jack thinks that he has somehow become Bow's best friend now that Junior is too busy with his new girlfriend.
When Sloane’s name is discovered in Afghanistan at the site of an abandoned bus with a dead driver, Gibbs accompanies her on a trip to find a group of girls who were kidnapped from the bus. McGee, Bishop and Torres track down a hacker who emailed compromising information to the Taliban.
When an experiment to save Barry's speed backfires, Nash Wells searches for a way to save The Flash and comes up with a dangerous plan. Meanwhile, Iris makes a startling realization inside the Mirrorverse and Cecile faces off with Rosa Dillon.