How I Met Your Mother is about to get crazy. But, don't worry.

As the title of the episode proves, it's a "Good Crazy."

On the final installment before the two-part HIMYM season finale, Marshall will freak out over impending fatherhood... while ordering a lot of shots alongside Barney on a road trip. Elsewhere, Robin and Ted will arrive at an understanding about their relationship.

Watch the official CBS promo now:

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