An old man has trouble connecting with his young grandson that recently moved in. But then there are a series of mysterious attacks on the elderly, and the grandpa-grandson duo decide to investigate together and bond over the experience.
You can now watch 60 Days of Summer online on the following streaming providers in the United States.
| Directing | Kim Hee-young | Director |
| Writing | Kim Bo-heum | Writer |
| Directing | Seo Gyu-seok | Assistant Director |