The film takes after the adventures of Alexander Cooper (Ed Oxenbould), a commonplace 11-yr-previous kid, and his "appalling, terrible, awful, terrible day." He is forgotten by his domestic; his extra deploy sibling, Anthony (Dylan Minnette), his extra seasoned sister, Emily (Kerris Dorsey), his mom, Kelly (Jennifer Garner), his dad, Ben (Steve Carell), and his baby sibling, Trevor (Elise/Zoey Vargas).
"Alexander and the Terrible, Horrible, No Good, Very Bad Day"- The day preceding Alexander's 12th birthday, he awakens discovers gum in his hair and clasps it off with some scissors. Anthony is watching to obtain his motive force's enable so he can tension his sweetheart, Celia (Bella Thorne), to the prom, Emily is strolling in direction of for the title phase in her faculty play of Peter Pan, Kelly is strolling for a manufacturing group which is disbursed one more children' ebook, and Ben, who has been unemployed for decades, has taking a look a potential employee meet-up as a diversion architect for a characteristic leisure group.
That similar morning, Alexander goes to magnificence in which he encounters one more arrangement of adversities, and as smartly as determining that his partners, adding his pound, Becky Gibson (Sidney Fullmer), and closest companion, Paul (Mekai Curtis), will all be going to the birthday gathering of Phillip Parker (Lincoln Melcher) however than his, on account of Philip's tremendous-priced gathering diversion and occurrence. He tries to tell his domestic how pitiably his day has long gone, but none of them even take heed to what he says. That hour of darkness, Anthony upsets Celia amid a phone title although shouting at Alexander announcing he is a "numbskull sibling", and Emily practices her stage traces in Kelly's Volvo although leaving behind its mild on. Alexander makes himself a brief birthday sundae and wishes his domestic may smartly smartly additionally smartly come across the error he does constantly.
The following morning, Alexander awakens locate his domestic in disorder and confusion ejects; his guardians have slept in, Emily has a groovy, and Anthony has learned that he and Celia separated. The battery in Kelly's auto is dead, because Emily left its mild on prime thru the night time although strolling in direction of, in end outcome Ben demands to give Trevor with him to the meeting contained in the wake of dropping Kelly off at work. At faculty, Paul can provide Alexander uplifting files: Philip hosts worn out his birthday gathering on account of ailment, and calls his dad, coming close to shut to him to plan a gathering for him.
Kelly is educated of a humiliating errors contained in the ebook they're publicizing, and wants to continue to be clean of Dick Van Dyke from understanding it at open perusing later. Ben takes Trevor along to the administrative center meeting and meets Greg (Donald Glover) who seems to be awed at his accreditations, nevertheless that they arrive to a selection to carry one more meeting after Trevor ingests a highlighter. Then in faculty, Anthony discovers that Celia has returned with him. Anthony is so comfortable about what befell, that he hops up and by the process slaps a pennant which is held up by two trophy presentation prerequisites between him, making them fall and weigh down, prompting his educator taking him to the manager's administrative center and suspending him.
In this comedy film, Kelly figures out the process to contact base at Dick Van Dyke's perusing, but she is previous the point in which that's a danger to warning him of the ebook's grammatical errors. He knows it with the unseemly supplies, mortifying himself and the disbursed group. In the period in-between, Ben has acquired hack syrup for Emily's declining edge effects and takes Anthony to the Department of Motor Vehicles, in which his the use of educator deliberately diverts him, making him weigh down some stopping meters, gravely ruin the domestic minivan, and fall flat his the use of exam. Alexander admits that the domestic's day changed into cursed owing to his evil wishes the prior night time, and apologizes, but Ben says "Statement of remorseful about not identified" because they might at latest have some terrific in it. Thereafter, they all move to Emily's play, which is by option undermined by her impeded conduct on account of her getting unnecessarily tipsy contained in the wake of overdosing on the hack syrup.
A short time later, the leisure plan agency calls Ben and requests that he meet them at a bona fide Japanese hibachi restaurant assembled Nagamaki for one extra convention. The domestic, joined by Celia, goes to the restaurant in their heavily harmed minivan, in which Ben inadvertently items his blouse ablaze at the barbeque, humiliating him to the managers. The entire domestic reassures him, conceding that they are going to triumph over no topic what else the day has in keep for them. Alexander states, "You basically gotta have the terrible days so you can love the terrific days an awful lot extra", and Anthony all of unpredicted chooses not to head to the prom with Celia, expressing that his domestic is extra indispensable they typically likewise separate totally.