Please help me! i need to save my plants!

Alright so, my plants are growing outdoors and they seemed to be doing fine until 3 days ago. Im starting to get very worried about them and i dont know if they're going to make it. I have some pics and hopefully one of you more experienced growers can give me some advice. Here's what im looking at. Please help me! They're still really small and this is only my first time trying this out. Let me know what i can do.
 

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