WATCH: Sneak peek of all-new RAISING HOPE episode - 'Lord of the Ring'

RAISING HOPE: Jimmy (Lucas Neff, second from L) looks for a job to earn extra cash in the all-new "Lord of the Ring" episode of RAISING HOPE airing Tuesday, Jan. 15 (8:00-8:30 PM) on FOX 50. Also pictured L-R: Cloris Leachman, Baylie/Rylie Cregut and Garret Dillahunt.

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By FOX50.com

Story Created: Jan 14, 2013 at 5:50 PM EDT

Story Updated: Jan 14, 2013 at 5:50 PM EDT

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Burt tells Jimmy that he needs to buy Sabrina a nice engagement ring, even if she claims she doesn’t need one, so Jimmy starts volunteering for a series of exotic medical experiments to come up with the cash.

Meanwhile Virginia has been pawning her engagement ring for years behind Burt’s back to pay for odds and ends. But when Jimmy visits the pawnshop and falls in love with his own mom’s ring, her secret may be out in the all-new “Lord of the Ring” episode of RAISING HOPE airing Tuesday, Jan. 15 (8:00-8:30 PM) on FOX 50. (HOP-312) (TV-14 D, L, V)

Cast: Lucas Neff as Jimmy; Martha Plimpton as Virginia; Garret Dillahunt as Burt; Shannon Woodward as Sabrina; Cloris Leachman as Maw Maw, Gregg Binkley as Barney.

Guest Cast: Baylie and Rylie Cregut as Hope; Todd Giebenhain as Frank; Matt Riedy as Scotch Wilkinson; Darla Haun as Susan; Karen McClain as Big Judy; John Yuan as Nick; Matt yuan as Hubert; Whit Hertford as Officer Ross; Bergen Williams as Sandra; Eric Kaldor as Rodney; Chris Carnel as Stunt Double Jimmy.