History TearJerker / Ducktales2017Season2

** When he's trying to articulate his complicated feelings, he stammers "It's probably my fault." The poor kid is ''blaming himself'' for not just being unreservedly happy about his mom's presence.

* When Lena sees the mysterious shadows (later on revealed to be tulpas) take the form of Magica de Spell, she ''becomes visibly '''terrified''''', if not helped by the tone of her voice. It might as well imply Lena suffers from PTSD from [[AbusiveParents the trauma Magica inflicted on her]].

* Meta Tearjerker: Russi Taylor passed away in July of 2019 at the age of 75, making her performance as Young!Donald the last time she'd appear in a ''Ducktales'' series. This really ''was'' the Last Christmas with her...

* The other Moonlanders finally discovering what a monster Lunaris is when they overhear his announcement that he is going to destroy the Earth while they are still on it, and also [[HeelRealization realizing]] that ''they'' were the aggressive party.

* Selene and Storkules ''want'' to help fight off the invasion, but Zeus is outright ''refusing'' to let them do so simply because of his hatred for Scrooge.

* The look on Louie's face before they leave to search for help. It's very obvious that he's blaming himself for making the Moonlanders' invasion easier than it already was by destroying the satellite defense network in the previous episode. One day as the richest duck on the planet resulted in him helping enable the end the world and it is written on his face that he knows this.

** Louie's face when his mom doesn't instantly forgive him. And then when she tells him Louie Inc. is done and that he is grounded, he looks utterly shocked and is stammering for someone to step in and defend him. When Della tells him it's not going to happen, all he can do his kick the time tub and sulk back to his room. This is the first time in the series anyone gets punished at all and coming from Della of all people, it is incredibly jarring.
*** We all know how being told off and punished in front of people you're not related to is the absolute worst, right? Well, poor Louie has to face a verbal lashing from his mother in front of Webby, Beakley, Launchpad AND Gyro. Even the latter looks like he's shocked and feels sorry for the "evil triplet".

* [[StartOfDarkness Jim's transformation into Negaduck.]] He was just an actor who couldn't accept another person taking on his most famous role. He ends up going insane and declares that [[ThenLetMeBeEvil if the world wants grim and gritty, he's more than happy to play that role.]]

* [[StartOfDarkness Jim's transformation into Negaduck.]] He was just an actor who couldn't accept another taking on his most famous role. He ends up going insane and declares that [[ThenLetMeBeEvil if the world wants grim and gritty and violent, he's more than happy to play that role.]]

** Added to that, Donald exclaims that Scrooge was “too young” to die. Thing is, Scrooge is around 152 years old, which is far past an average lifespan. Donald just isn’t emotionally mature to accept that.

* Both Donald and Scrooge find Fethry's antics and eccentricities so annoying to the point where they don't even want to pick up the phone when he calls. It is also implied that the only reason Fethry was given the job as janitor of the underwater laboratory was to keep him out of Scrooge's feathers. Bear in mind that as vexing as they find Gladstone they'll at least hear him out if he makes the effort. Fethry doesn't even get that much consideration.

* TheReveal near the end of Part 1: Della wasn't trying to recruit anybody for their "mission". She was ''running away'', wanting to find anywhere to be safe from the invading Moonlanders. While being chased, the kids confront Della about this and she admits her reason why: ''[[AdultFear She doesn't want to lose them again]]''.

* Louie missing out on the family spending time at the ''only'' adventure he'd arguably enjoy. As much as he rightfully deserved to be punished for nearly screwing the entire family over and destroying time just to make a quick buck, it's pretty heart rendering to see him at such a stage.

* Della finally putting her foot down after Louie nearly destroys all of time purely because he wanted to get rich quick at everyone else's expense. She hates being strict with him but understands that she can't just let him be EasilyForgiven for this and he needs to learn that she isn't all sunshine and rainbows and repent for his actions.

** Thankfully as shown in ''Beaks in the Shell!'', Fenton knew that Gandra was in league with F.O.W.L. and Gandra only joined so they could fund her, essentially making her a PunchClock Villain.

* Della realizes while celebrating the boys' first birthday that she doesn't actually know what they look like.

* As Launchpad finds out with Jim Starling in this episode, meeting your childhood hero does not always mean they are the same person you have made them out to be from the roles you watched them play at a younger age. Despite how Launchpad has nothing but respect for him and his role as Darkwing Duck, Starling is little more than a jaded, self-centered has-been who doesn't appreciate what few fans he has left, reacting with clear annoyance when he sees Launchpad (who he calls "the fainter") at the couch store opening and then pressuring him into aiding his plot to replace Drake in the film's finale so he can be in the spotlight again. This is in direct contrast to Drake, who Launchpad is trying to sabotage but who quickly bonds with him and treats him with respect.

[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/tearjerker_happy_birthday_doofus_drake_7.jpg]]
[[caption-width-right:350:She may have all that loot, but she is not happy.]]

* When Della tells Louie off for stealing a dangerous contraption and running off with it without thinking of the consequences or how it could effect others, he passive-aggressively responds “[[ArmorPiercingResponse I wonder who I got THAT from]],” causing everybody to gasp in shock and/or look really uncomfortable (or in Beakley's case, look ''absolutely livid''). It indicates Louie hasn’t fully forgiven his mom for ''her'' impulsive mistakes.

** Louie tries to turn to Beakley and Scrooge for help in defending him when Della shuts down Louie Inc., only for both grown-ups to sadly not respond since they know Della is not wrong. Keep in mind that throughout the season Scrooge has been essentially Louie's mentor.

** This can hit home for any sensitive kids. Also while he did deserve it,it's hard NOT to also feel bad for Louie here too.