WARNING: SPOILERS AHEAD. IF YOU HAVE NOT SEEN THE SERIES PREMIERE, DO NOT CONTINUE READING.

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The truth about what's going on concerning the virus infecting a lot of people will begin to show itself even more on Fear the Walking Dead.  

In a sneak peek clip for the show's second episode, things will continue to get more dire for Madison (Kim Dickens), Travis (Cliff Curtis) and their blended family as more circumstances similar to the one they've already experienced continue to arise-and the truth about the impending apocalypse slowly continues to reveal itself.

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After witnessing a supposedly dead Calvin (Keith Powers) stumble towards them and trying to attack Madison by biting her, then still being able to rise up again and again after Nick (Frank Dillane) runs him over with a car twice, she and Travis will continue to clue in to more of the situation and become suspicious about what's happening -- causing them both to potentially start taking action in an effort to keep themselves and their loved ones protected.

In the clip, Madison appears to team up with Tobias (Lincoln A. Castellanos), the geeky teen who warned her about the virus being more than it was played up as, in an effort to get materials from the now abandoned high school to potentially work on a plan for safety -- or at least to provide answers. However, the plot could be deterred after Madison sees a fellow faculty member in the distance and goes after him-only to possibly find out he may already be beyond saving.

"Artie?" she calls after him after seeing him slowly shuffle away from her -- with clear blood stains on the back of his shirt by his shoulder.

Fear the Walking Dead airs Sundays at 9 p.m. on AMC.