In the first sneak preview of this week's Grey's Anatomy episode, "Hook, Line and Sinner," we watched Mark and his daughter ponder whether to keep the littlest Sloan.

In the first of four new clips we have just posted below, we see a frantic Mark running around looking for help, because his grandchild has just been born. At home. Crazy:

[video url="http://www.tvfanatic.com/videos/hook-line-and-sinner-sneak-preview-2/" title="Hook, Line and Sinner Sneak Preview #2"] [/video]

Follow the jump for more Thursday sneak peeks, including a glimpse at the gruesome accident that brings a patient to Seattle Grace and gives the episode its title.

Also, Derek struggles with a decision regarding Teddy, and Richard isn't inclined to help ...

[video url="http://www.tvfanatic.com/videos/hook-line-and-sinner-sneak-preview-3/" title="Hook, Line and Sinner Sneak Preview #3"] [/video]

[video url="http://www.tvfanatic.com/videos/hook-line-and-sinner-sneak-preview-4/" title="Hook, Line and Sinner Sneak Preview #4"] [/video]

[video url="http://www.tvfanatic.com/videos/hook-line-and-sinner-sneak-preview-5/" title="Hook, Line and Sinner Sneak Preview #5"] [/video]

What do you think of the above sneak peeks? Are you looking forward to this week's episode of Grey's Anatomy? Share your thoughts and impressions with us here.

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