The Wizard of Oz Episode 3 - The Tin Man

Dorothy, Toto, and the Scarecrow travel along the yellow brick road and encounter a Tin Man in need of oil. After helping him, they discuss their intentions to visit the Wizard of Oz to fulfill their desires: Dorothy wants to go home, the Scarecrow seeks a brain, and the Tin Man hopes for a heart. The video concludes with music.

What were Dorothy and her friends traveling to see?

What did the Tin Man wish to receive from the Wizard?