"Suicide is Painless" is a foreboding episode title, and these sneak previews of Thursday's Grey's Anatomy certainly live up to that billing. This week, Teddy must treat a gravely patient requesting her help with - in case you haven't guessed - assisted suicide.

This ethically questionable procedure is a primary focal point of the episode. Here's the patient confessing her wishes to Dr. Altman in the first of five sneak preview clips ...

[video url="http://www.tvfanatic.com/videos/suicide-is-painless-sneak-preview-1/" title="Suicide is Painless Sneak Preview #1"] [/video]

Continue reading below for four more sneak peeks from the episode, including two in which Teddy asks for assistance in meeting her patient's request, and gets some resistance.

The fourth preview is an intense flashback to Owen's Gulf War days, interspersed with a conversation with Derek in the present. In the fifth, Callie makes a surprise confession.

Follow the jump to watch, enjoy and tell us what you think ...

[video url="http://www.tvfanatic.com/videos/suicide-is-painless-sneak-preview-2/" title="Suicide is Painless Sneak Preview #2"] [/video]

[video url="http://www.tvfanatic.com/videos/suicide-is-painless-sneak-preview-3/" title="Suicide is Painless Sneak Preview #3"] [/video]

[video url="http://www.tvfanatic.com/videos/suicide-is-painless-sneak-preview-4/" title="Suicide is Painless Sneak Preview #4"] [/video]

[video url="http://www.tvfanatic.com/videos/suicide-is-painless-sneak-preview-5/" title="Suicide is Painless Sneak Preview #5"] [/video]

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.