Jana and Jessa embark on a lighting project while the rest of the family travels to Central America; Jessa and Ben go on their first date since Spurgeon was born.

Jessa goes out for coffee with Jana and Anna, leaving Ben in charge of Spurgeon; Jinger buys a car at auction; Jana starts a new project with her brothers; Jill and Derick introduce Israel to their love of pickles.

The siblings continue building the tree house, which gets bigger and bigger; Joy and Sierra secretly plan a surprise baby shower; Jill and Derick have surprise guests in Central America.

Work on the tree house continues, but cold weather hampers the family's efforts. Meanwhile, Ben and Jessa go to St. Louis to meet with Christian rapper Flame, and inspiration sends Ben into the recording booth.

The girls hit the road for a weekend getaway, but encounter an unexpected detour on the way to their destination. Meanwhile, the tree house is ready for a big unveiling after weeks of work.

Jessa, Ben and Spurgeon travel to Central America to visit Jill, Derick and Israel. As they prepare for the trip, they travel down memory lane, revisiting Jessa's milestone moments, from engagement to motherhood, that have led to this emotional reunion.

Jessa and Ben experience what life is like in a foreign country with a young son; Jill and Derick remember their beginnings together in Nepal and the adventures that have led them to Central America.

In the Season 2 premiere, mission work continues for Jill and Derick in Central America; Jessa and Ben talk about their growing family; and Jinger shares big news about her future.

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Wilderness training continues for the Duggar siblings following a frightening encounter with a nocturnal visitor. Meanwhile, Jill and Derick celebrate their second anniversary; and Jessa and Ben are amazed by how fast Spurgeon is growing.

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Jeremy takes a secret trip to Arkansas, where he and Ben browse for engagement rings before surprising Jinger. Later, Jessa and Ben introduce rapper Flame to the Duggar clan.

Ben hosts a football camp for kids with help from some former NFL players. Meanwhile, Jana sets out to redecorate the guesthouse for Jill and Derick when they come home from Central America; and Jinger and Jeremy plan a trip to New York City.

Jinger and Jeremy go on a whirlwind trip to see his family and friends; a look back at past Duggar courtships, with tips from the guys for a successful relationship.

Jinger, Michelle, Jessa, Ben and Spurgeon meet Jeremy's family and friends while visiting his old stomping grounds, culminating with an important question he wants to ask Jinger.

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The family comes together to relive some of the most memorable moments from season two, and a surprise guest makes an appearance.

A look back at the Duggar daughter marriages, when Jill and Jessa walked down the aisle just months apart.

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Jinger packs for her move to Texas, which includes a surprise gift from her family, before she, Jeremy and Jed drive to her future home; the siblings take a trip down memory lane by remembering Jinger through the years.

After months of planning, Jinger's wedding day has arrived and the final details, from dress fittings to surprise decorations, are put into place as family and friends come together to celebrate the new Mr. and Mrs. Vuolo.

Jinger and Jeremy have said "I do," and now the newlyweds finally get to enjoy some alone time. Mr. and Mrs. Vuolo head down under for their honeymoon in Australia. Meanwhile, back in Arkansas, another Duggar enters a courtship.