In the second half of this epic premiere, (originally aired September 17, 1977), things heat up—literally. A Hero on the Run

This installment is a fan favorite because it humanizes Jaime's struggle with her own cybernetics by mirroring them in Max. It also gave us one of the most iconic duos in 70s sci-fi. While a "Bionic Dog" spin-off was initially considered, Max ultimately stayed as a series regular for the rest of the final season.

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Picking up where the premiere left off, Jaime Sommers is a woman on a mission to save her new four-legged friend. Max, a German Shepherd with a million-dollar bionic jaw and legs, is facing "bionic rejection"—or so the OSI thinks. To save him from being put down, Jaime heads to the Sierra Nevada mountains to seek help from an old flame, forest ranger . Trial by Fire