Guts (102)

[GateWorld]

<DIV ALIGN="center"><TABLE WIDTH="450" BORDER="0" CELLSPACING="0" CELLPADDING="7"><TR><TD STYLE="border: none;"><DIV ALIGN="left"><FONT FACE="Verdana, Arial, san-serif" SIZE="2" COLOR="#000000"><A HREF="http://www.scifistream.com/the-walking-dead/s1/guts/"><IMG SRC="http://www.scifistream.com/wp-content/uploads/guts-160x120.jpg" WIDTH="160" HEIGHT="120" ALIGN="right" HSPACE="10" VSPACE="2" BORDER="0" STYLE="border: 1px black solid;" ALT="Visit the Episode Guide"></A><FONT SIZE="1" COLOR="#888888">THE WALKING DEAD - SEASON ONE</FONT>
<FONT SIZE=4><A HREF="http://www.scifistream.com/the-walking-dead/s1/guts/" STYLE="text-decoration: none">GUTS</A></FONT>
<FONT SIZE="1">EPISODE NUMBER - 102</FONT>
<DIV STYLE="margin-top:10px; padding:0;">Rick receives some surprise help escaping from a tank surrounded by walkers, and hooks up with a resourceful survivor who leads him to other humans holed up in a downtown department store. The group is none-too-pleased with Rick, whose gunshots have attracted a rapacious rabble of zombies, and he is forced to come up with a gutsy plan to get them out of the city. <I>(TV Guide)</I></DIV>
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[Steelbox]

The part about distinguishing dead from living trough smell is actually plausible. Many don't have eyes, others have only half of the face, and the neurosensorius olfactorius are always pretty safe from damage in the inside of the head.