Justin explores the concepts of marshmallow self-control and why it's best just to go with the flow. Plus -- free fro-yo!

It's man vs. machine as Justin squares off against a robot in a magic battle. Other topics include delivery drones, face yoga and virtual reality.

Justin attempts to convince people that invisibility, brain-enhancing medicines and superpowers are all real. (Spoiler alert: They're not!)

Oh, the guilt! Justin talks to moms about lying for a living. Later, he conducts an eyewitness experiment and amazes detention-stricken students.

In this episode dedicated to romance, Justin helps a single guy get a date and delivers a surprise proposal to a woman who married herself.