It seems like just yesterday Lab Rats made its debut on Disney XD, but unfortunately the last few years have flown by quickly and the series has officially wrapped filming its final episode.

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Lab Rats hit TV screens in February 2012, bringing a bionic group of friends to the Disney family.

Tyrel Jackson Williams (Leo Dooley on the series) has starred alongside Kelli Berglund (Bree Davenport on the series), Spencer Boldman (Adam Davenport on the series) and Billy Unger (Chase Davenport on the series) for the last four years.

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This fourth and final season of Lab Rats began airing in March and resumes airing tonight, July 1, for its final few episodes. The series was even renamed, Lab Rats: Bionic Islandfor this season.

Anyway, the cast just wrapped filming its final episode, which has made Berglund quite emotional.

Tuesday night, the Lab Rats star said on Instagram, Williams, Boldman and Unger "are my family, and I love each & every one of them from the bottom of my heart."

A photo posted by Kelli Berglund (@kelliberglund) on Jun 30, 2015 at 8:03pm PDT

She said working with them on the set of this series has been "a roller coaster ride, but the endless love and laughter has made it worth it." "I'm gettin teary-eyed just typing this up, but I know it won't be the last time our paths cross. Thank you for making me one of the boys. And thank you for the memories," she gushed. Williams shared similar sentiments, revealing working with Berglund, Unger and Boldman "has been an absolute pleasure."

Boldman also celebrated the end of the series on Instagram, dishing, "To the best cast, crew and fans..."

 4 seasons. 98 episodes. So much love. To the best cast, crew and fans... Thank you for this journey.

A photo posted by sboldman (@sboldman) on Jul 1, 2015 at 10:05am PDT

Lab Rats: Bionic Island airs on Wednesdays on Disney XD at 9 p.m. ET.

Tags: Lab Rats Lab Rats: Bionic Island Disney XD television