What comes after the door knock on 'The Bachelor?'

Fans are still reeling from last night's episode that ended with Colton knocking on Cassie's door shortly after she left him.
5:16 | 03/12/19

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Transcript for What comes after the door knock on 'The Bachelor?'
Thank you, Adrienne. You're very welcome. Are you ready for "Bachelor" brahma. We have an exclusive sneak peek of tonight's finale after that bombshell. Colton all alone sending both remaining women home and going after the one who left him. ABC's erielle reshef is it here with all of this and more. Good morning, erielle. Reporter: Good morning to you, Cecilia. There were more tear, mostly from Colton, twists and heartbreak than bachelor nation could have expected. Colton sending two women who loved him home determined to win cassie back. Fans left with the ultimate cliffhanger ahead of tonight's big finale. It started off with a manhunt. We've got a dark figure down the road. Reporter: The dramatic moments finding Colton caught on camera. Dude, I'm done. I've been through enough of knowing I'm not enough for a long time. Reporter: Chris Harrison exclusively walking us through the next steps for the show. We went to his room the next morning and sat down and had that heart to heart and it was brutal. We sat in for a couple of hours just trying to figure out what we were going to do. Reporter: Colton first parting ways with tayshia. In my heart I know I can't love two people. My heart is with somebody else. I love cassie. Can we talk without owl these cameras? Tayshia had her overnight date and thought she was the one. That breakup as you saw was extremely emotional. No, I don't want to -- I don't want to go through this. I don't want to. Reporter: One woman saying good-bye while Hannah G. Had high hopes it was just the gipping. This week is the perfect chance to tell Colton that I love him. The Hannah G. One was really different because she never had her overnight. So she actually thought that Colton might be coming to say it's over, you're the one. I really thought honestly for sure it would be us. I don't know how to take this Reporter: With the heartbreak and tears behind him, Colton now ready to fight for what he came for. I want to be with cassie. I love her enough to risk everything. I want to not only tell her but show her. Reporter: Former bachelor contestant Ashley rooting for Colton no matter what decision he makes. Because I think he's been such a fantastic bachelor. Such a sympathetic character and I hope he goes after cassie and I hope it works out for him. Reporter: Still willing to put his heart on the line. Love is not simple. Love is messy. And I don't know what the future holds for me. Reporter: And all his fear as side. I just want to be loved back the way that I love somebody. I don't know if that's possible. Reporter: For the chance of finding love with one woman. I don't know if I'm fighting for something that's not possible. But I'm willing to do anything and everything because that's how much I love cassie. Reporter: Former bachelorette Ali cheering him on. Follow your heart. Like that's what life and love and relationships and "The bachelor" is all about. You're making all of us so go get your girl. Reporter: "Gma" getting this exclusive sneak peek of tonight's finale, Colton's parents voicing their concern. I'm always concerned for your heart and for what could happen. I know how you are when you're in love. Seeing you hurt after that hurt bad. He has love in his heart. He's pure. He's honest and he's going back in to talk to cassie. Reporter: His love story will play out but who does that leave for the next bachelorette? So here's who I would choose Okay. Heading into tonight. Kailyn, I would have Hannah B., I would have Hannah G. I would have tayshia, and I would have demi in the mix. Bachelorette will be one of those five. Quite a tease there. Overnight Colton getting some support from previous bachelor Arie who changed his mind at the end of the season saying I truly believe life rewards you when you follow your own path not paved by others but paved by your belief in what's right for you. As for the next bachelorette you heard Chris Harrison talking about it there and giving a teaserbout the last five. This franchise is famous for having a twist. This could be a bachelorette from a previous season. We'll see it go down for Colton tonight:00, 7:00 central. Guess who will be here tomorrow for "Gma"? I might have to. Thanks a lot. I might have to come but Colton will be here tomorrow. Will he be alone or will he have found love? So what our viewers don't know, erielle was basically narrating under her breath. She doesn't love him back. They had to wait till 10:30 till I watched it. Rob, take it away. Security, good morning, guys.

This transcript has been automatically generated and may not be 100% accurate.

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