---
title: "Undergrounded (S18E12) | familyguy.co.uk"
canonical: "https://familyguy.co.uk/episodes/s18e12-undergrounded/"
updatedDate: 2026-09-06
author: Alex Moss
description: "Undergrounded: Family Guy season 18 episode 12 (S18E12), first aired 23 February 2020. Writer and director credits."
---

# Undergrounded

Episode 12 of Family Guy season 18 (S18E12), the 341st Family Guy episode overall. Written by Mike Desilets and directed by Greg Colton. First broadcast on 23 February 2020.

## Story

Short of money for a round at the Drunken Clam, Peter learns that Joe and Cleveland keep credit cards their wives know nothing about. He takes one out, is found out, and Lois grounds him. To reach the bar he digs a tunnel from the house, and a cave-in traps him underground with Quagmire, Cleveland and Joe. The only way out for the four of them rests on Brian giving Peter up to Lois.

## Facts

| Fact | Detail |
| --- | --- |
| Season | 18 |
| Episode | 12 of 20 |
| Overall | No. 341 |
| Code | S18E12 |
| First aired | 23 February 2020 |
| Directed by | Greg Colton |
| Written by | Mike Desilets |
| Production code | JACX13 |
| Source | Wikipedia: Family Guy season 18 |
| Wikidata | Q103888194 |
| IMDb | tt11312604 |
| Verification | Checked against Wikidata and IMDb: title, date, numbering and credits agree |
| US viewers | 1.57 million |

## Voices

| Voice | Characters |
| --- | --- |
| Seth MacFarlane | Peter Griffin, Brian Griffin, Stewie Griffin |
| Alex Borstein | Lois Griffin |
| Seth Green | Chris Griffin |
| Mila Kunis | Meg Griffin |
| Mike Henry | Cleveland Brown |

Principal voice credits as recorded by IMDb, which lists up to ten credits per episode, so recurring characters can be missing here. Guest voices below come from Wikipedia and TVmaze.

## Links

- Season: [18](https://familyguy.co.uk/episodes/season-18/)
- Source: [Wikipedia: Family Guy season 18](https://en.wikipedia.org/wiki/Family_Guy_season_18)
- Wikidata: [Q103888194](https://www.wikidata.org/wiki/Q103888194)
- IMDb: [tt11312604](https://www.imdb.com/title/tt11312604/)
- US viewers: [1.57 million](https://en.wikipedia.org/wiki/Family_Guy_season_18)

## Navigation

- Previous: [S18E11 Short Cuts](https://familyguy.co.uk/episodes/s18e11-short-cuts/)
- Next: [S18E13 Rich Old Stewie](https://familyguy.co.uk/episodes/s18e13-rich-old-stewie/)
- Season hub: [Season 18](https://familyguy.co.uk/episodes/season-18/)
- All episodes: [Family Guy episode guide](https://familyguy.co.uk/episodes/)

## Season 18: episode 12 of 20

- S18E01 [Yacht Rocky](https://familyguy.co.uk/episodes/s18e01-yacht-rocky/)
- S18E02 [Bri-Da](https://familyguy.co.uk/episodes/s18e02-bri-da/)
- S18E03 [Absolutely Babulous](https://familyguy.co.uk/episodes/s18e03-absolutely-babulous/)
- S18E04 [Disney's The Reboot](https://familyguy.co.uk/episodes/s18e04-disneys-the-reboot/)
- S18E05 [Cat Fight](https://familyguy.co.uk/episodes/s18e05-cat-fight/)
- S18E06 [Peter & Lois' Wedding](https://familyguy.co.uk/episodes/s18e06-peter-and-lois-wedding/)
- S18E07 [Heart Burn](https://familyguy.co.uk/episodes/s18e07-heart-burn/)
- S18E08 [Shanksgiving](https://familyguy.co.uk/episodes/s18e08-shanksgiving/)
- S18E09 [Christmas Is Coming](https://familyguy.co.uk/episodes/s18e09-christmas-is-coming/)
- S18E10 [Connie's Celica](https://familyguy.co.uk/episodes/s18e10-connies-celica/)
- S18E11 [Short Cuts](https://familyguy.co.uk/episodes/s18e11-short-cuts/)
- S18E12 Undergrounded (this entry)
- S18E13 [Rich Old Stewie](https://familyguy.co.uk/episodes/s18e13-rich-old-stewie/)
- S18E14 [The Movement](https://familyguy.co.uk/episodes/s18e14-the-movement/)
- S18E15 [Baby Stewie](https://familyguy.co.uk/episodes/s18e15-baby-stewie/)
- S18E16 [Start Me Up](https://familyguy.co.uk/episodes/s18e16-start-me-up/)
- S18E17 [Coma Guy](https://familyguy.co.uk/episodes/s18e17-coma-guy/)
- S18E18 [Better Off Meg](https://familyguy.co.uk/episodes/s18e18-better-off-meg/)
- S18E19 [Holly Bibble](https://familyguy.co.uk/episodes/s18e19-holly-bibble/)
- S18E20 [Movin' In (Principal Shepherd's Song)](https://familyguy.co.uk/episodes/s18e20-movin-in-principal-shepherds-song/)

---

Unofficial fan resource. Not affiliated with, endorsed by, or sponsored by FOX, Disney, or Fuzzy Door Productions.