secondary storyline

noun
UK /ˈsekəndəri ˈstɔːrilaɪn/
US /ˈsekənderi ˈstɔːrilaɪn/

A smaller story that happens alongside the main story.

The movie's secondary storyline about the dog made everyone laugh.


OTHER MEANINGS

2. A less important series of events in a book or show.

The secondary storyline follows the teacher's life.

3. A supporting plot that helps explain the main characters.

The secondary storyline shows why the hero is brave.

4. A background story in a game or play.

Players can skip the secondary storyline if they want.