'This Is Us' Season 1 Spoilers: Mandy Moore, Justin Hartley Reveals More Plot Twists, Everything We Need To Know!

After Tuesday night's shocker in Episode 5 of NBC's "This Is Us" that Jack Pearson, portrayed by actor Milo Ventimiglia, was actually dead in the present day, fans are now clamoring for more news and "This Is Us" Season 1 spoilers.

In an exclusive interview with Us Weekly, Justin Hartley, who plays Kevin Pearson in the drama, he reveals more "This Is Us" Season 1 spoilers. One of the main things that will be seen in "This Is Us" Season 1 is just how complicated Kevin's relationship is with his adoptive brother Randall, played by Sterling K. Brown.

Hartley even reveals that there will be one episode completely dedicated to the brothers' estranged relationship. Kevin wants to get closer and reconnect with his brother, but they barely have anything in common, despite growing up in the same house under Jack and Rebecca (Mandy Moore).

Very different from his relationship with Randall, Kevin has a close relationship with the former's daughters, who think he is the cool actor-uncle, and who likes showing him attention. Hartley also talks about how his character greatly approves of his twin's relationship with Toby. It can be remembered that Kevin actually fired Kate as his assistant so she can pursue a relationship with Toby.

One of the things that fans should look forward to is the fact that "This Is Us" Season 1 is not yet done with the plot twists and tear-jerking moments. Hartley says that some moments are too "earth-shattering" that even the actors like Mandy Moore, who plays the Pearson matriarch, Rebecca, cry while reading the script!

He does not give specific "This Is Us" Season 1 spoilers but Hartley says viewers should be prepared with tissues for every episode for the rest of the season! After all, Hartley says that when the audience cries, the show wins as that is their goal.

What do you think of the plot twist involving Jack's character? What else do you think is in store for the rest of "This Is Us" Season 1?

"This Is Us" Season 1 airs at Tuesdays at 9 p.m. on NBC