🚨Warning: Obviously there are MASSIVE spoilers ahead for the Season 4 finale.🚨This week, This Is Us ended Season 4 with a jam-packed episode filled with a ton of answers, but also even more questions. Ron Batzdorff / NBC "Strangers: Part Two" showcased storylines in the past, present, and future, and it was honestly one of the best episodes this season. NBC In the past, Rebecca and Jack dealt with the Big Three's first birthdays, and Rebecca tried to figure out how to mourn and honor Kyle, the baby she lost. NBC This led to another incredible moment between Rebecca, Jack, and Dr. K, who they visited for advice — Gerald McRaney continues to be amazing in this role. NBC In the present, Randall and Kevin finally had an explosive fight, which is the reason they still aren't talking on their 40th birthdays. NBC Also, Madison learned that she is pregnant with twins and Kevin is the father. NBC Madison's OB-GYN also played a major role in this episode and we saw him with his own daughter.And, Kate and Toby celebrated Jack Jr.'s first birthday and decided to adopt a baby. NBC Now, in the future, we saw Kevin and his children visiting a much older Rebecca with Uncle Nicky and Randall. NBC Some other things to note are that we haven't seen Kate or Miguel, we don't know who Kevin's wife actually is, and Uncle Nicky is married!And, Jack Jr. and Lucy welcomed an adorable baby girl, Hope, and we saw Jack's sister, Hailey, for the first time. NBC Also, am I the only one who finds it odd that Toby AND Kate aren't here for the birth of their grandchild?! I'm stressed.Like me, the rest of the internet is freaking out over the This Is Us Season 4 finale. Here are some of the best reactions:1.SPOILER ALERT!!!! “She’s my sister”-Jack Damon 😭❤️😱#ThisIsUs— Chrissy Metz (@ChrissyMetz) November 5, 2019 Twitter: @ChrissyMetz / Via Twitter: @ChrissyMetz2.My exact reaction when museum girl turned out to be Jack’s sister 😭 #ThisIsUs— ✨ree (@ohsnapsitsriri) November 5, 2019 Twitter: @ohsnapsitsriri / Via Twitter: @ohsnapsitsriri3.Kate gets her boy and girl dream from the time capsule! #ThisIsUs— Lauren McG (@LaurenAnnMcG) November 5, 2019 Twitter: @LaurenAnnMcG / Via Twitter: @LaurenAnnMcG4.What’s her name? Me: *Don’t say Rebecca don’t say Rebecca don’t say Rebecca* Jack: Hope Me: THAT’S EVEN DEEPER #ThisIsUs— Alexia (@ltstlkabtlex) November 5, 2019 Twitter: @Itstlkabtlex / Via Twitter: @ltstlkabtlex5.THIS IS HOPE 💗🥰 #ThisIsUs— 🌹 (@tvgoldtweets) November 5, 2019 Twitter: @tvgoldtweets / Via Twitter: @tvgoldtweets6.The lack of Kate and Toby in the future is making me very nervous 😭 #ThisIsUs— Aisha (@Kitobear13) November 5, 2019 Twitter: @Kitobear13 / Via Twitter: @Kitobear137.I am glad they showed Rebecca mourning for Kyle with Jack. You can never forget the child you carried for nine months and lost. 😭😭😭 #ThisIsUs— Dr.Mitali Argikar (@MitaliArgikar) November 5, 2019 Twotter: @MitaliArgikar / Via Twitter: @MitaliArgikar8.Me, 9:55 PM: What could Kevin and Randall possibly say that would cause them to stop speaking for at least a year? Me, 9:56 PM: Well. Okay then. #ThisIsUs— Ryan (@ColorMeImprssed) November 5, 2019 Twitter: @ColorMelmprssed / Via Twitter: @ColorMeImprssed9.kevin n randall physically fighting each other would’ve hurt less than seeing them say all that to one another god DAMN #ThisIsUs— cubs give kb a long term extension (@stevesfelicity) November 5, 2019 Twitter: @stevesfelicity / Via Twitter: @stevesfelicity10.I can’t believe Kevin and Randall said that to each other ... #ThisIsUs— Ave (@SebastianAvenue) November 5, 2019 Twitter: @SebastianAvenue / Via Twitter: @SebastianAvenue11.Character growth......thy name is Kevin Pearson. #ThisIsUs— HeatherC 😊⚾⛸ (@kwanfan1212) November 5, 2019 Twitter: @kwanfan1212 / Via Twitter: @kwanfan121212.Randall and Kevin right now... I'm surprised no one threw a punch 'cause every SECOND of that argument was laced with fighting words. Every bit of that was hurtful good god #ThisIsUs— Brooke Nicole ☀️ (@notebrookepaper) November 5, 2019 Twitter: @notebrookepaper / Via Twitter: @notebrookepaper13.This just about took me out because I can’t believe he said this #ThisIsUs— 🦋 (@tswiftsbt13) November 5, 2019 Twitter: @tswiftsbt13 / Via Twitter: @tswiftsbt1314.Kevin has surpassed Randall in the rankings for #1 Pearson son. #ThisIsUs— Yolanda Lewis 💻🍿💋 (@TheLewisEffect) November 5, 2019 Twitter: @TheLewisEffect / Via Twitter: @TheLewisEffect15.Dr. K just fixed my whole life. #ThisIsUs— KymberleyAngela (@kymberleyangela) November 5, 2019 Twitter: @kymberleyangela / Via Twitter: @kymberleyangela16.All Coronavirus press conferences should end with a speech from this man. #ThisIsUs— KristinDeLuciaMorgan (@kmorgan76) November 5, 2019 Twitter: @kmorgan76 / Via Twitter: @kmorgan7617.How does Dr. K always know the right things to say😭 #ThisIsUs— Ty Eveland (@TyEveland) November 5, 2019 Twitter: @TyEveland / Via Twitter: @TyEveland18.Me piecing together all the new information given from the finale of #ThisIsUs— gabi_camarero (@GabiCamarero) November 5, 2019 Twitter: @GabiCamarero / Via Twitter: @GabiCamarero19.Thank you, #ThisIsUs for always reminding us that even in the darkest of times, there’s always hope...and blue skies ahead 🌤— Chelsea Michaels (@chelsafire) November 5, 2019 Twitter: @chelsafire / Via Twitter: @chelsafireWhat did you think of the This Is Us Season 4 finale? Tell us in the comments below!