Returning on July 23, 2012 with a 20 episode order for Season 4^[1], the announcement of Warehouse 13’s renewal was all but expected.

1. ↑ Warehouse 13′s Fourth Season To Expand To 20 Episodes With 7-Episode Order

Episode listEdit

Image	Title	Writer(s)	Director(s)	Airdate	#
	A New Hope	Writer: Jack Kenny	Director: Chris Fisher	July 23, 2012	#1
	Pete, Myka, Claudia, Leena, and Artie must find a way to restore the Warehouse before it's too late.
	An Evil Within	Writer: Holly Harold	Director: Constantine Makris	July 30, 2012	#2
	Pete and Myka track down an artifact in Philadelphia that's causing people to see bizarre monsters, while Artie tries to prevent Claudia from bringing back Steve.
	Personal Effects	Writer: Ian Stokes	Director: Andrew Seklir	August 6, 2012	#3
	The Warehouse team must track down the remainder of Sykes's artifacts which are out loose on a North Dakota city.
	There's Always a Downside	Writer: Drew Z. Greenberg	Director: Constantine Markis	August 13, 2012	#4
	Pete and Claudia attempt to recover an artifact that fell into Hugo Miller's hands, while Myka and Steve travel to New Orleans to find an artifact that's healing people of their illnesses.
	No Pain, No Gain	Writer: Nell Scovell	Director: Jay Chandrasekhar	August 20, 2012	#5
	While Pete and Myka investigate a hockey player who's being miraculously healed of his injuries, Steve and Artie look into the thefts occurring within the Warehouse. Mrs Frederic invites Claudia to lunch to show her an incredible revelation.
	Fractures	Writer: Benjamin Raab & Deric A. Hughes	Director: Chris Fisher	August 27, 2012	#6
	Lewis Carroll's mirror turns up missing and the psychotic Alice Liddell is released into the world once more; the team set out to stop her once and for all.
	Endless Wonder	Writer: Bob Goodman	Director: Michael McMurray	September 10, 2012	#7
	Artie, Steve and Claudia try to find out where Brother Adrian is hiding. Pete and Myka search for an artifact that is making people taller, with deadly consequences, while a nosy drug executive is tailing them and putting the secret nature of the Warehouse at risk.
	Second Chance	Writer: Diego Gutierrez	Director: Constantine Makris	September 17, 2012	#8
	Pete and Myka investigate a case of people rusting away, while Steve and Claudia visit Steve's hometown to end his dependence on the metronome. Artie tells the truth about the astrolabe and his connection with Brother Adrian.
	The Ones You Love	Writer: Nell Scovell	Director: Howie Deutch	September 24, 2012	#9
	Claudia, Myka, and Pete have to protect their families from artifacts, while Artie has some conflicts of his own. Steve and Mrs Frederic look into the brotherhood of the black diamond.
	We All Fall Down	Writer: Holly Harold	Director: Chris Fisher	October 1, 2012	#10
	Pete, Myka, and Claudia have no time to mourn a fallen comrade as they go after the person responsible. Mrs. Frederic and Steve work with Brother Adrian to find a way to undo the downside of the Astrolabe. Artie's vision of Claudia finally comes true.
	The Living and the Dead	Writer: Drew Z. Greenberg	Director: Millicent Shelton	April 29, 2013	#11
	Pete and Myka must race to snag an artifact that can reverse the effects of the orchid before it's too late while Claudia and Steve try to bring Artie back before his mind is lost forever.
	Parks and Rehabilitation	Writer: Ian Stokes	Director: Larry Teng	May 6, 2013	#12
	Pete and Claudia investigate a case of a man being suddenly buried alive in a national park while Artie tries to do Leena's work and Myka and Steve try to help Artie move past all the terrible things he did while he was under the influence of the astrolabe.
	The Big Snag	Writer: John-Paul Nickel	Director: Chris Fisher	May 13, 2013	#13
	Pete and Myka get sucked into a 1940s detective noir novel in search of an artifact. Meanwhile, Artie, Steve and Claudia chase down a phantom car thief.
	The Sky's the Limit	Writer: Michael Jones-Morales	Director: Jack Kenny	May 20, 2013	#14
	Pete and Myka head to Vegas to investigate murders that are tied to the world of high magic. Meanwhile, Claudia and Jinks search for an artifact used to rig horse races, while Artie meets the new B&B owner, Abigal Cho.
	Instinct	Writer:	Director:	June 3, 2013	#15
	Runaway	Writer:	Director:	June 10, 2013	#16
	What Matters Most	Writer:	Director:	June 17, 2013	#17
	Lost & Found	Writer:	Director:	June 24, 2013	#18