7.2

A.P. Bio•Season 4•Episode 3

An Oath to Rusty

7.2/10 · 232 votesSep 2, 202122 min

Ranked #6 of 8 in Season 4•−0.3 vs season avg

Discussion

Jack attempts to get closer with the guys at work. Helen helps Principal Durbin grow a backbone.

Directed byKatie Locke O'Brien

Written byShelly Gossman

Previous episodeE2 · Sweatpants Next episodeE4 · Tons of Rue

Seasons4

All 1 2 3 4

Season 4 Episodes8

Tornado!

Sweatpants

An Oath to Rusty

Tons of Rue

The Perfect Date From Hell

E6 7.2

Love, for Lack of a Better Term

E7 7.0

Malachi

E8 8.1

The Harvard Pen

Cast6

Glenn Howerton

Jack Griffin

Patton Oswalt

Principal Ralph Durbin

Paula Pell

Helen Henry Demarcus

Lyric Lewis

Stef

Mary Sohn

Mary

Jean Villepique

Michelle

Crew2

Katie Locke O'Brien

Director

Shelly Gossman

Writer

Discussion

0 comments

Join the conversation

Share your take and reply to other fans.

No comments yet

Be the first to share your thoughts on this episode.

Episode Summary

"An Oath to Rusty" is episode 3 of A.P. Bio season 4. It scored 7.2/10 from 232 votes, ranking #6 of 8 episodes this season (season average 7.5). Directed by Katie Locke O'Brien and written by Shelly Gossman, it aired on September 2, 2021.

Next: E4 · Tons of Rue Best of Season 4