When the purveyor of a popular Hamptons food truck seems quickly corrupted by his success, Hank puts together his odd behavior, and pinpoints the cause of his symptoms.

When a park ranger is hit by lightning, Hank is able to save his life. Now the ranger wants to recapture the experience.

Hank searches for the cause of a magician's anxiety; Evan books a segment on "The Today Show".

Hank treats a florist with vivid dreams; Divya helps Evan prepare for a debate; Hank and Jeremiah disagree about treating Hank's post-surgical pain.

Keller asks Hank for help with an embarrassing medical problem. Divya treats a group of Civil War reenactors who are suffering from an age-old disease. Evan fears he may be in over his head when he's roped into a secret project with Boris.